tag:blogger.com,1999:blog-88467587646809964532024-02-21T05:09:08.916+05:30Computer Tutorials, Tips and TricksA free computer tutorials blog where you can find all the fundamental tutorials, tips and tricks of computer like HTML, SQL, .Net, Java, computer fundamental, computer articles etc.Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.comBlogger29125tag:blogger.com,1999:blog-8846758764680996453.post-43757527628053448252012-05-06T17:12:00.002+05:302012-09-16T22:38:26.418+05:30What Are Input And Output Devices Of Computer?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: justify;"><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: right; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDYZtlHvUnvJGi5LszrhVkSv9GTL-VsuQTVBVHFrRJiP41EtzAQHQW1xnQ8RRwEK2uXf6ci6R7mKMgMI7Mb6kKcX5hPdtfs34It8kHbdEPpPZCTwXineVnp1mQrqsBs5LBxYdM8vSq-M4/s1600/input+device.jpg" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="306" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDYZtlHvUnvJGi5LszrhVkSv9GTL-VsuQTVBVHFrRJiP41EtzAQHQW1xnQ8RRwEK2uXf6ci6R7mKMgMI7Mb6kKcX5hPdtfs34It8kHbdEPpPZCTwXineVnp1mQrqsBs5LBxYdM8vSq-M4/s400/input+device.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Input Devices</td></tr>
</tbody></table>Within processing, <a href="http://indiagadgetreviews.blogspot.com/" target="_blank">input/output</a>, or maybe I/O output device, appertains to the connection between an details processing system (such being computer), and also the outside world, probably a runner, or input device other details digesting program. Inputs would be the signs or maybe data received through the system, as well input device as components would be the signs or maybe data sent as a result. The term may also be used input device during an action; in order to "perform I/O" would be to execute an understanding or maybe result procedures. I/O input device tools are utilized by an individual (or extra system) in order to correspond with education output device. For example, a pc keyboard or perhaps a mouse might be an insight gadget to obtain a pc, while shows as well input device as machines are thought result input device products to obtain a pc. Products concerning connection between pcs, such as modems as well as network credit cards, generally functionality concerning the two insight as well as outcome.<br />
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Remember that the specific designation of the device since each insight or maybe result depends on the angle. <a href="http://computertechtuts.blogspot.com/2012/04/define-input-and-output-devices-also.html" target="_blank">Mouse</a> as well as <a href="http://computertechtuts.blogspot.com/2011/07/what-is-input-and-out-devices.html" target="_blank">keyboards</a> consider because insight bodily actions input device the person customer components as well as convert it straight into signs that the pc can comprehend. The outcome from the product is insight for the pc. In the same manner output device, machines as well as displays consider because insight signs that the pc components. Then they convert these symptoms straight into representations that each users input device can easily see or maybe read. To obtain a individual customer the reading or maybe seeing these illustrations receives insight. These types of connections between pcs as well as humans is researched in an exceedingly industry known as human–computer discussion output device.<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN5DfDUOdjCS7sfLSHW9siTCXU1XIiHbVr-Eb7GBhLxwMoJABPSIcK0eNoNjg5JdTrEN-N-nvJ2sHHR-tZIxkJocnrFIXvwTTbxanm_866DPVRoAmK1zQOz3oQCKFAfW6Zc8BFrfqI08M/s1600/output-device.jpg" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="314" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN5DfDUOdjCS7sfLSHW9siTCXU1XIiHbVr-Eb7GBhLxwMoJABPSIcK0eNoNjg5JdTrEN-N-nvJ2sHHR-tZIxkJocnrFIXvwTTbxanm_866DPVRoAmK1zQOz3oQCKFAfW6Zc8BFrfqI08M/s400/output-device.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Output Devices</td></tr>
</tbody></table>Within pc buildings, the specific mixture of the specific CPU as well input device as physical memory (i. electronic. storage the actual CPU can go through as well as compose in order to directly, along with individual instructions) is definitely the mental faculties of the pc, as well as input device from there regarding take a look at any exchange info from or that mixture, for instance in order to or maybe from the drive press, is known as I/O. The specific CPU along with supporting circuitry provide memory-mapped I/O which is used in low-level computer-programming, like the implementation input device regarding gadget drivers. A good I/O protocol is only one made to exploit locality as well as execute efficiently whenever data place secondary storage space, like a drive press.<br />
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User interface An I/O input device user interface is essential whenever the specific I/O device is actually input device input device motivated through the processor. The specific interface should have essential logic in order to interpret the device cope with created by the processor chip. Handshaking should be integrated through the interface using appropriate instructions (like ENERGETIC, PREPARED, as well as WAIT), and also input device the processor input device can match having an I/O device through the interface. Whenever different data types are purchased, the specific interface should be effective at convert serial information in order to parallel form as well as vice-versa output device. There has to be provision regarding making interrupts and also the corresponding type quantities for more digesting through the processor when it is necessary.<br />
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Education that utilizes memory-mapped I/O has access to hardware by simply writing and reading in order to specific storage areas, utilizing the same assemblage vocabulary recommendations that pc would likely normally use for entry storage space.</div><div style="text-align: justify;"><br />
Higher-level execution Higher-level os as well as encoding input device amenities utilize distinct, much more fuzy I/O concepts as well as primitives output device. Like most systems supply program programs with the idea of files. The specific Chemical as well as C++ development dialects, as well as systems within the Unix family members, typically fuzy files as well as products since areas, which may be read or maybe composed, or maybe sometimes both. The specific Chemical standard brochure provides capabilities concerning manipulating fields concerning insight as well as input device outcome output device.<br />
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Within the context from the ALGOL 68 development vocabulary, the specific insight as well as result amenities are often each known as transput. The specific ALGOL sixty-eight transput catalogue identifies these regular files/devices: wait in, stand out, stay mistakes as well as stay back again.<br />
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A substitute for specific primitive abilities would be the I/O monad, that allows plans in order to explain I/O, and also the actions are often completed beyond the plan. This really input device is notable since the I/O capabilities would likely present side-effects to the encoding terminology output device, but this enables strictly useful development to become practical.</div><div style="text-align: justify;"><br />
Dealing with setting There are lots of ways by which data input device could be read or maybe saved in the specific storage. Every technique is an handling setting, and it has its advantages as well as restrictions.<br />
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There are lots of kind of handling modes such as primary dealing with, indirect dealing with, immediate dealing with, index dealing with, centered dealing with, based-index dealing with, implied dealing with, and so on<br />
Main dealing with Within this particular kind of cope with from the data is really a part of the guidelines by yourself. Once the processor interprets the specific training, this has got the storage cope with from just wherever it may be read/written the necessary information output device.<br />
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Oblique dealing with Based on the above example, the specific cope with could be saved in another sign-up. For that reason the specific guidelines may have input device the specific sign-up representing the specific cope with. To retrieve crucial computer data, the specific training should be interpreted appropriate creating an account selected. The significance of the specific sign-up to be used regarding handling suitable storage place after output device that data is going to be read/written. This particular handling strategy posseses a benefit against the main mode the creating an account value is flexible therefore the appropriate storage location may also be dynamically chosen.<br />
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Port-mapped I/O usually demands the usage of guidelines that are created specifically to do I/O features.</div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com1tag:blogger.com,1999:blog-8846758764680996453.post-27229070103149753992012-02-01T21:23:00.001+05:302012-02-01T21:26:43.473+05:30Examples Of Input Output Devices<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">A fundamental pc program has a pc, keep track of, computer keyboard, as well as computer mouse. There's also a lot of add-ons as well as peripherals that may be additional. Let us check out that they just about all interact.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Should you had been to create a good example in order to the body, the actual pc will be such as the mind, the actual keep track of -- the actual mouth area, the actual computer keyboard as well as computer mouse - eye as well as ear.... The actual pc regulates all of the performance within the program. Another products exist to provide the actual pc advices and also to supply this along with results.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Let us tell you a good example, let's imagine the consumer squeezes the computer keyboard crucial - ESC. The actual computer keyboard goes by which enter to the pc (the brain). The actual pc after that chooses upon how to proceed with this particular transmission - that depends upon exactly what the actual pc happens to be performing. State the actual pc made the decision which ESC implies that it will leave from what ever software it's presently within. This leaves the applying as well as transmits an indication towards the keep track of (output) to exhibit a brand new image, 1 exactly where which software is actually shut.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">You will find loads associated with additional products that may be blocked into the pc, a number of them tend to be enter products, a few result products, plus some tend to be each. A good just about all in a single printer/scanner could be each a good enter as well as a good result gadget, print(output) as well as scan(input).</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Occasionally the actual splitting up associated with products is not everything obvious, such as inside a laptop computer. The actual pc, keep track of, as well as computer keyboard are within the exact same container. However the splitting up associated with elements nevertheless is available, even though they do not possess room in between all of them. Within the laptop computer, the actual pc continues to be individual in the computer keyboard as well as in the keep track of, also it nevertheless views these phones end up being input/output products it may contact.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Look for a pc restore professional from agorabid. com.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">AgoraBid simplifies the procedure of having something. A person produce a support ask for as well as providers bet onto it. A person have to pick the greatest ranked company in the greatest cost.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Some type of computer may be the modernity's essential gadget and also the tag associated with technologies delivered to the actual public. This consists of complicated as well as elaborate buildings however it's very simple to use. The actual plainest description of the pc is actually it signifies the device which gets enter, procedures this after which creates result. The actual system is straightforward within idea however offers huge possible within exactly what issues the different outcomes which come because result. The actual operating theory is actually made with the formula "the enter is available in as well as creates output". Consequently, to comprehend the actual technical procedures which happen within the pc, 1 has to understand concerning the romantic relationship input-output (I/O), thoughts associated with digesting as well as storage space.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDYZtlHvUnvJGi5LszrhVkSv9GTL-VsuQTVBVHFrRJiP41EtzAQHQW1xnQ8RRwEK2uXf6ci6R7mKMgMI7Mb6kKcX5hPdtfs34It8kHbdEPpPZCTwXineVnp1mQrqsBs5LBxYdM8vSq-M4/s1600/input+device.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><span class="Apple-style-span" style="font-family: inherit;"><img border="0" height="245" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDYZtlHvUnvJGi5LszrhVkSv9GTL-VsuQTVBVHFrRJiP41EtzAQHQW1xnQ8RRwEK2uXf6ci6R7mKMgMI7Mb6kKcX5hPdtfs34It8kHbdEPpPZCTwXineVnp1mQrqsBs5LBxYdM8vSq-M4/s320/input+device.jpg" width="320" /></span></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span class="Apple-style-span" style="font-family: inherit;">Input Devices</span></td></tr>
</tbody></table><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The very first concept- I/O- is in the foundation from the exercise of the pc. Some type of computer consists of elements which are split in to 2 courses based on their own perform. Both of these courses tend to be enter components as well as result types. By way of enter products which are attached to the actual pc, the info makes its way into the machine. The actual computer keyboard, the actual computer mouse, scanning devices as well as digital camera models deliver info towards the pc and therefore are types of enter elements. When the pc gets the info, this transmits this in order to result products which create various outcomes. Consequently, the actual picture about the display, the actual seem in the speaker-boxes, the actual webpages imprinted tend to be pictures from the idea result. The actual keep track of, the actual loudspeakers, the actual inkjet printer are thought result products.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The actual modem is really a gadget which deals with each enter as well as result since it gets but additionally transmits info. The actual pc's storage space program is actually an additional instance associated with each input-output working element. The info delivered to the actual pc is actually prepared prior to it's delivered to the actual result products. With no digesting phase, the info would not end up being appropriate any longer and also the pc will be just like a pipe. The actual processor chip accounts for the game associated with changing the actual enter information within result. The actual processor chip works based on a few directions organised as the program.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN5DfDUOdjCS7sfLSHW9siTCXU1XIiHbVr-Eb7GBhLxwMoJABPSIcK0eNoNjg5JdTrEN-N-nvJ2sHHR-tZIxkJocnrFIXvwTTbxanm_866DPVRoAmK1zQOz3oQCKFAfW6Zc8BFrfqI08M/s1600/output-device.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><span class="Apple-style-span" style="font-family: inherit;"><img border="0" height="252" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN5DfDUOdjCS7sfLSHW9siTCXU1XIiHbVr-Eb7GBhLxwMoJABPSIcK0eNoNjg5JdTrEN-N-nvJ2sHHR-tZIxkJocnrFIXvwTTbxanm_866DPVRoAmK1zQOz3oQCKFAfW6Zc8BFrfqI08M/s320/output-device.jpg" width="320" /></span></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span class="Apple-style-span" style="font-family: inherit;">Output Devices</span></td></tr>
</tbody></table><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The final component within the pc formula may be the storage space, that signifies the actual "space" in which the processor chip works it's exercise. Pc storage space is actually associated with 2 types: short-term as well as long-term.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Short-term storage space, also known as MEMORY, materials the actual pc along with storage, exactly where applications operate and also the info is actually saved although it is actually done. Once the microprocessor is not straight focusing on the info, long-term storage space enables the actual pc in order to save information upon storage space press. Hard disk drives, press credit cards, expensive hard disks, optical dvds, Compact disks as well as Dvd disks tend to be this kind of storage space press. These people conserve info which may be remembered with regard to later on make use of.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Producing a good example between your pc as well as the body, MEMORY (random entry memory) is the same as a person's storage. All of us briefly shop info within our mind. To ensure all of us remember this, all of us create this lower. The actual mat associated with document accustomed to create the actual obtained info is the same as long-term storage space.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The actual pc by itself -- the actual equipment -- offers numerous components. However the crucial elements fall under among the 4 groups: processor chip, storage, enter as well as result, as well as storage space.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The actual Processor chip. Digesting may be the process which changes uncooked information in to helpful info. To do this particular change, the actual pc utilizes 2 elements: the actual processor chip as well as storage. The actual processor chip is much like the mind from the pc. This sets up as well as bears away directions which come through possibly the consumer or even the program. Inside a pc, the actual processor chip includes a number of microprocessors that are silvers associated with silicon or even additional materials etch along with numerous small digital circuits. In order to procedure information or even total a good coaching from the person or perhaps a plan, the actual pc goes by electrical power with the circuits.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">An individual pc's processor chip is generally a solitary nick or even some potato chips included on the signal panel. In certain effective computer systems, the actual processor chip includes numerous potato chips and also the signal planks which the actual potato chips tend to be installed.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Storage. It's as an digital the begining mat within the pc. Whenever you release a course, it's packed in to storage with regard to quick entry. Because brand new information is actually joined to the pc, it's also saved within storage, however just briefly. The most typical kind of storage is known as arbitrary entry storage or even MEMORY. Consequently, the word storage is often accustomed to imply MEMORY. Information is actually each created in order to as well as study out of this storage. Possibly it is important to consider regarding MEMORY is actually that it's unstable, therefore it requires a continuous way to obtain energy. Whenever you switch off some type of computer, every thing within MEMORY vanishes. Therefore, you need to save your valuable documents to some storage space gadget often.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Enter as well as Result Products. Some type of computer will be ineffective should you couldn't connect to this since the device couldn't obtain directions or even do the trick associated with it's function. Enter products take information as well as directions in the person or even through an additional pc program (such like a pc about the Internet). Result products come back prepared information towards the person in order to an additional pc program.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The most typical enter gadget may be the computer keyboard, that allows characters, amounts, as well as instructions in the person. An additional essential kind of enter gadget may be the computer mouse, that enables you to choose choices through on-screen selections. You utilize the computer mouse through shifting this throughout a set area as well as pushing it's control keys. Virtually every pc offered these days features a computer mouse. Additional well-liked enter products tend to be trackballs, contact patches, joysticks, scanning devices, digital camera models, as well as microphones.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The most typical result products would be the keep track of and also the inkjet printer. The actual pc transmits result towards the keep track of (the show screen) once the person requirements and then begin to see the result. This transmits result towards the inkjet printer once the person demands the document copy- also known as a tough copy- of the record. There are many ink jet printers you are able to select from based on your own require. Study a few on the internet publishing evaluations upon ink jet printers to help you a concept associated with which kind of inkjet printer is actually perfect for you in order to your company. Publishing organization evaluations additionally display what sort of inkjet printer is definitely the peripheral gadget required inside a pc.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Storage space. Some type of computer may perform along with just digesting, storage, enter as well as result products. The same as a few ink jet printers available on on the internet publishing evaluations, these people usually execute a multiple perform work for example inkjet printer, scanning device as well as photo copier. To become truly helpful nevertheless, some type of computer additionally requires a spot to maintain plan documents as well as associated information once they aren't being used. The objective of storage space would be to maintain information completely.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">They are points you have to be acquainted with to ensure that whenever you purchase your pc, you'll have a concept exactly how every element functions, as well as therefore, have the ability to deal with all of them.</span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-2524497900166200762012-02-01T21:01:00.002+05:302012-02-01T21:07:46.802+05:30Examples of Input and output devices of computer<div dir="ltr" style="text-align: left;" trbidi="on">A basic computer system comes with a computer, monitor, keyboard, and mouse. There are also tons of accessories and peripherals that can be added. Let's take a look at how they all work together.<br />
<div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">If you were to make an analogy to the human body, the computer would be like the brain, the monitor - the mouth, the keyboard and mouse - eyes and ears.... The computer controls all the functionality in the system. The other devices are there to give the computer inputs and to provide it with outputs.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Let's run through an example, let's say the user presses a keyboard key - ESC. The keyboard passes that input on to the computer (the brain). The computer then decides on what to do with this signal - which depends on what the computer is currently doing. Say the computer decided that ESC means that it should exit out of whatever application it is currently in. It exits the application and sends a signal to the monitor (output) to show a new picture, one where that application is closed.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">There are tons of other devices that can be plugged in to the computer, some of them are input devices, some output devices, and some are both. An all in one printer/scanner can be both an input and an output device, print(output) and scan(input).</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Sometimes the separation of devices isn't all that clear, like in a laptop. The computer, monitor, and keyboard are all in the same box. But the separation of components still exists, even if they don't have space between them. Inside the laptop, the computer is still separate from the keyboard and from the monitor, and it still considers them to be input/output devices that it can communicate with.</span></div><div style="text-align: justify;"><br />
</div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">A computer is the modernity's indispensable device and the mark of technology brought to the masses. It is made of complex and intricate structures but it is very easy to use. The plainest definition of a computer is that it represents a gadget that receives input, processes it and then produces output. The mechanism is simple in concept but has enormous potential in what concerns the various results that come as output. The working principle is rendered through the equation "the input comes in and produces output". Therefore, to understand the technological processes that occur inside the computer, one has to know about the relationship input-output (I/O), notions of processing and storage.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The first concept- I/O- lies at the basis of the activity of a computer. A computer is made of components that are divided into two classes according to their function. These two classes are input parts and output ones. By means of input devices that are connected to the computer, the information enters the system. The keyboard, the mouse, scanners and digital cameras send information to the computer and are examples of input components. Once the computer receives the information, it sends it to output devices that produce different results. Therefore, the image on the screen, the sound from the speaker-boxes, the pages printed are illustrations of the notion output. The monitor, the speakers, the printer are considered output devices.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The modem is a device that handles both input and output because it receives but also sends information. The computer's storage system is another example of both input-output functioning component. The information sent to the computer is processed before it is sent to the output devices. Without the processing stage, the information wouldn't be relevant anymore and the computer would be like a tube. The processor is responsible for the activity of transforming the input data in output. The processor operates on the basis of some instructions structured in the form of the software.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The last part in the computer equation is the storage, which represents the "space" where the processor performs its activity. Computer storage is of two kinds: temporary and long-term.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Temporary storage, also called RAM, supplies the computer with memory, where programs run and the information is stored while it is worked on. When the microprocessor isn't directly working on the information, long-term storage allows the computer to save data on storage media. Hard drives, media cards, flash drives, optical discs, Cds and Dvds are such storage media. They save information which can be recalled for later use.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Making an analogy between the computer and the human body, RAM (random access memory) is equivalent to an individual's memory. We temporarily store information in our head. To make sure we don't forget it, we write it down. The pad of paper used to write the received information is equivalent to long-term storage.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The computer itself - the hardware - has many parts. But the critical components fall into one of the four categories: processor, memory, input and output, and storage.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The Processor. Processing is the procedure that transforms raw data into useful information. To perform this transformation, the computer uses two components: the processor and memory. The processor is like the brain of the computer. It organizes and carries out instructions that come from either the user or the software. In a personal computer, the processor consists of one or more microprocessors which are silvers of silicon or other material etched with many tiny electronic circuits. To process data or complete an instruction from a user or a program, the computer passes electricity through the circuits.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">A personal computer's processor is usually a single chip or a set of chips contained on a circuit board. In some powerful computers, the processor consists of many chips and the circuit boards on which the chips are mounted.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Memory. It is like an electronic scratch pad inside the computer. When you launch a program, it is loaded into memory for fast access. As new data is entered into the computer, it is also stored in memory, but only temporarily. The most common type of memory is called random access memory or RAM. As a result, the term memory is commonly used to mean RAM. Data is both written to and read from this memory. Perhaps the most important thing to remember about RAM is that it is volatile, so it needs a constant supply of power. When you turn off a computer, everything inside RAM disappears. Thus, you should save your data files to a storage device frequently.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Input and Output Devices. A computer would be useless if you could not interact with it because the machine could not receive instructions or deliver the results of its work. Input devices accept data and instructions from the user or from another computer system (such as a computer on the Internet). Output devices return processed data to the user or to another computer system.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The most common input device is the keyboard, which accepts letters, numbers, and commands from the user. Another important type of input device is the mouse, which lets you select options from on-screen menus. You use a mouse by moving it across a flat surface and pressing its buttons. Nearly every computer sold today includes a mouse. Other popular input devices are trackballs, touch pads, joysticks, scanners, digital cameras, and microphones.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The most common output devices are the monitor and the printer. The computer sends output to the monitor (the display screen) when the user needs only to see the output. It sends output to the printer when the user requests a paper copy- also called a hard copy- of a document. There are plenty of printers you can choose from depending on your need. Read some online printing reviews on printers to guide you an idea of what type of printer is ideal to you or to your business. Printing company reviews also show how a printer is indeed a peripheral device needed in a computer.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5A7GbAFWUaOg78z08EmY-ltjK3KQF6WFfNmAXjfl3CIila9SZTZAE3Vdd3pNDJXXGAgp0-fsH2BOxut9dLXgbiR2Lnp_F0b-3sKTQJtf5OT8cqUZWWz6y9PotJG5Xs-aZ3CoTYARNlXQ/s1600/computer+hardware+images.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5A7GbAFWUaOg78z08EmY-ltjK3KQF6WFfNmAXjfl3CIila9SZTZAE3Vdd3pNDJXXGAgp0-fsH2BOxut9dLXgbiR2Lnp_F0b-3sKTQJtf5OT8cqUZWWz6y9PotJG5Xs-aZ3CoTYARNlXQ/s1600/computer+hardware+images.jpeg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Input And Output Devices</td></tr>
</tbody></table><div style="text-align: justify;">Storage. A computer can function with only processing, memory, input and output devices. Just like some printers found on online printing reviews, they typically perform a multi function job such as printer, scanner and copier. To be really useful however, a computer also needs a place to keep program files and related data when they are not in use. The purpose of storage is to hold data permanently.</div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">These are things you need to be familiar with so that when you buy your personal computer, you will have an idea how each component works, and thereby, be able to take care of them.</span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com1tag:blogger.com,1999:blog-8846758764680996453.post-55821101969778134462012-01-19T21:31:00.003+05:302012-01-19T22:01:15.589+05:30What If Your Windows Taskbar Disappeared?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">One of the most annoying problems with Windows is a missing taskbar. If your taskbar disappeared, the problem stems from human error or other factors. However, it is not too hard to recover your taskbar. The taskbar usually exist at the bottom of your Windows screen. However, you may have positioned it on the left or right side of the screen. It may also be "hiding". However, if it hasn't reappeared after a Windows' restart, here are some reasons why the taskbar disappeared.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Reason 1: <b>Taskbar is hiding</b></span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">A missing taskbar can be the result of the "hide" feature in the taskbar properties menu. Often the taskbar properties can quickly solve your problem, You can use the taskbar properties by using the Windows search feature. Go to the Start menu, type "taskbar" into the search bar then choose Customize the Taskbar. Simply uncheck the Auto-Hide feature.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">If your taskbar disappeared, try pressing <b>CRTL-ESC</b>. This will immediately give you access to the taskbar and Start menu, once you have forced the taskbar to appear, you can use the properties menu. Remove the check from Auto-hide feature.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Reason 2: <b>Taskbar has moved</b></span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">You can sometimes find the task bar hanging out in other positions such as the top and side of your desktop. Move your mouse pointer to see if the taskbar reappears at extreme locations on your desktop. If it's reappears, you can simply click and drag it to other parts of the screen. Once it's in the desired position, lock it by right clicking the taskbar and choosing properties. Finally, choose the lock the taskbar feature by right-clicking to bring up the properties menu.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Reason 3: <b>Taskbar is too small</b></span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">The bar can reduce and enlarge with ease. However, if it's too thin, it's difficult to see. So if your taskbar disappeared, try searching for a thin line at the previous taskbar site. You can "fatten" the task bar by clicking the edge of the taskbar and dragging it to a larger scale. Be sure that the taskbar isn't locked. If it is, you cannot do this action.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><b>Using the Task Manager</b></span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Using the task manager to restart or restore the taskbar is often a viable option. You can open the task manager by simply pressing <b>Ctrl-Alt-Del</b> This will bring up the task manager utility. Once the program opens, choose file then the Run New Task option, type "taskbar" to reset explorer and the taskbar.</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;"><br />
</span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">Reason 4: <b>You have a virus</b></span></div><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: inherit;">One thing to remember about a missing taskbar is that it may just be hiding or obstructed. However, there are some cases were a virus will remove the taskbar completely, in this case, you should run your security software and try to detect the culprit. Often in this case, using system restore may also give you a quick solution to a missing taskbar.</span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-68516876915817399982012-01-07T19:38:00.000+05:302012-01-07T19:38:01.772+05:30What is computer Hardware?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: justify;"><b><a href="http://computertechtuts.blogspot.com/2011/11/what-is-difference-between-software-and.html" target="_blank">Computer Hardware</a></b> : In a simple way - What you can touch or see called as computer hardware. This is the simplest definition of computer hardware. </div><div style="text-align: justify;">Here I am going to give you some more examples of computer hardware.</div><div style="text-align: justify;"><br />
</div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: justify;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5A7GbAFWUaOg78z08EmY-ltjK3KQF6WFfNmAXjfl3CIila9SZTZAE3Vdd3pNDJXXGAgp0-fsH2BOxut9dLXgbiR2Lnp_F0b-3sKTQJtf5OT8cqUZWWz6y9PotJG5Xs-aZ3CoTYARNlXQ/s1600/computer+hardware+images.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5A7GbAFWUaOg78z08EmY-ltjK3KQF6WFfNmAXjfl3CIila9SZTZAE3Vdd3pNDJXXGAgp0-fsH2BOxut9dLXgbiR2Lnp_F0b-3sKTQJtf5OT8cqUZWWz6y9PotJG5Xs-aZ3CoTYARNlXQ/s1600/computer+hardware+images.jpeg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Computer Hardware Parts</td></tr>
</tbody></table><div style="text-align: justify;">Hardware is any part of your computer that has a physical structure, such as the computer monitor or keyboard.</div><br />
<div style="text-align: justify;"><br />
</div><div style="text-align: justify;">Wiki definition of <a href="http://computertechtuts.blogspot.com/2011/07/what-is-computer.html" target="_blank">computer </a>hardware : </div><br />
<div style="text-align: justify;">Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system supporting application software that performs the operator's desired functions. Operating systems usually communicate with devices through hardware buses by using software device drivers.</div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSK5aIld2r347YvmL2Q-Pb81z1rC7_bT00vVrnyeSMfTQ4HNxLV0OD10K595q3PV3t_inBWDhV0BhqlJtrJq3jbwlCcMoI9wor4VKEvEBPjrDw00EeZ7J7NZLd2ZK2Q3hhTE9EXsqPnPE/s1600/computer+hardware.jpeg" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSK5aIld2r347YvmL2Q-Pb81z1rC7_bT00vVrnyeSMfTQ4HNxLV0OD10K595q3PV3t_inBWDhV0BhqlJtrJq3jbwlCcMoI9wor4VKEvEBPjrDw00EeZ7J7NZLd2ZK2Q3hhTE9EXsqPnPE/s1600/computer+hardware.jpeg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Computer Hardware</td></tr>
</tbody></table><div style="text-align: justify;">Computer accessories which you can define as a computer hardware are listed below.</div><div style="text-align: justify;"></div><ol><li>C.PU (Central Processing Unit) </li>
<li>Monitor</li>
<li>Keyword</li>
<li>Printer</li>
<li>Scanner</li>
<li>Joystick</li>
<li>Motherboard </li>
<li>CD/DVD ROM</li>
<li>Mouse</li>
<li>Microphone</li>
<li>Speaker</li>
<li>Light Pen</li>
<li>Touch pad</li>
<li>Hard Disk</li>
<li>SMPS (Switch Mode Power Supply)</li>
</ol><br />
<div style="text-align: justify;"><br />
</div><br />
</div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-8980699995078761202012-01-01T11:31:00.001+05:302012-07-08T12:18:11.277+05:30Input and Output Devices of computer.<div dir="ltr" style="text-align: left;" trbidi="on">
<div style="text-align: justify;">
<span class="GingerNoCheckStart"></span>In computing, <b><a href="http://computertechtuts.blogspot.com/2011/07/write-down-components-of-computer.html" target="_blank">input/output</a></b>, or <b>I/O</b>, refers to the communication between an information processing system (such as a computer), and the outside world, possibly a human, or <span class="GRcorrect" grphrase="183a07e773e7f97917babfa0ed6138559d6bd733" grtype="2" id="GRmark_183a07e773e7f97917babfa0ed6138559d6bd733_another:0">another</span> information processing system. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it. The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are used by a person (or other system) to communicate with a computer. For instance, a keyboard or a mouse may be an input device for a computer, while monitors and printers are considered output devices for a computer. Devices for communication between computers, such as modems and network cards, typically serve for both input and output.</div>
<br />
Here are some images of Computer's Input and Output Devices.<br />
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhB7Q0SqnzNDyIquANF8EGoE4vMdfwAZe68Z6t0UohSwvwsFmiVcHIpmg0RDmIycFsch1mAE7y6vkGBgp-X-rBfXXvpE2qy_UUbJBj0ULH9JOAzzJojBLClthz7nADy5WYsxQR_70P6xUo/s1600/Input+Devices.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="241" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhB7Q0SqnzNDyIquANF8EGoE4vMdfwAZe68Z6t0UohSwvwsFmiVcHIpmg0RDmIycFsch1mAE7y6vkGBgp-X-rBfXXvpE2qy_UUbJBj0ULH9JOAzzJojBLClthz7nADy5WYsxQR_70P6xUo/s320/Input+Devices.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Input and Output Devices</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2Ck1VoqweJW8YP6bA-ouEENbKNU9VMFG_iX4by7IILcLX1XGKJikFacc2SjNX8L5OAQ9X5ZkrwOFkQ4F-Z_-XGnABy7koU9OMEuLSPFHR9_a5ItKyqubpGeDwr129FhtqVQdc9WfYANc/s1600/computer+output+device+printer.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="206" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2Ck1VoqweJW8YP6bA-ouEENbKNU9VMFG_iX4by7IILcLX1XGKJikFacc2SjNX8L5OAQ9X5ZkrwOFkQ4F-Z_-XGnABy7koU9OMEuLSPFHR9_a5ItKyqubpGeDwr129FhtqVQdc9WfYANc/s320/computer+output+device+printer.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Printer - An Output Device</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0mBT8bp-PSybVLLaEpvzbwa2Kq8LPi1sxlTLXPjfdPcyQE4Dxn-fVsWMZmYfjL6i78LF_pm3tITi57kmCXy5oR7G2cCmzqi9TKAEMqiZYKuga4pRLasHAdDF87hONEgbR5TnM0Tr8_1E/s1600/computer+input+and+output+device.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0mBT8bp-PSybVLLaEpvzbwa2Kq8LPi1sxlTLXPjfdPcyQE4Dxn-fVsWMZmYfjL6i78LF_pm3tITi57kmCXy5oR7G2cCmzqi9TKAEMqiZYKuga4pRLasHAdDF87hONEgbR5TnM0Tr8_1E/s1600/computer+input+and+output+device.jpeg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Images of Input and Output devices</td></tr>
</tbody></table>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3u3txpx168GTXVuAgNhVv_rjElPCt2kJJ4OiVo81fyXTHUs8LTvGF6Y-NAOjXn724ET9iK6Ru7gHuM6ebH7wZ2YAltfTUYR8jpbE32CoFNqYZA8_mUe8D-rhr8K40-zCzNngE3DWH8qg/s1600/keyboard.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="287" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3u3txpx168GTXVuAgNhVv_rjElPCt2kJJ4OiVo81fyXTHUs8LTvGF6Y-NAOjXn724ET9iK6Ru7gHuM6ebH7wZ2YAltfTUYR8jpbE32CoFNqYZA8_mUe8D-rhr8K40-zCzNngE3DWH8qg/s320/keyboard.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Keyboard - A input device of computer</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJjg294mEIEG-RnrFxZlFt_CUZpmalY1squ0ut5gHLkjjUotaT7FN1WoZSUPcVeRRGxoqH8KqcGic-cnkFu_yBlv5ooeGgtvrhQzJLOV0djqL-ieG2HzH5KdUicujpDdLrZBZPWdDCEx4/s1600/mouse.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJjg294mEIEG-RnrFxZlFt_CUZpmalY1squ0ut5gHLkjjUotaT7FN1WoZSUPcVeRRGxoqH8KqcGic-cnkFu_yBlv5ooeGgtvrhQzJLOV0djqL-ieG2HzH5KdUicujpDdLrZBZPWdDCEx4/s1600/mouse.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Mouse - A input device of computer</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0viiLI3EG6arZ-smzTFGtkWdYAOCF8MT0pPkbZq1OGwwgWxpBvLXHhQaZ15j1PjVOQVcsIdczMsvGOcXTt8Wff5b7mLLtrkCYIOeMvb_qzZKczwXDPyLwsISeyL0uHwTCaWFh0DoPSlE/s1600/Monitor.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="219" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0viiLI3EG6arZ-smzTFGtkWdYAOCF8MT0pPkbZq1OGwwgWxpBvLXHhQaZ15j1PjVOQVcsIdczMsvGOcXTt8Wff5b7mLLtrkCYIOeMvb_qzZKczwXDPyLwsISeyL0uHwTCaWFh0DoPSlE/s320/Monitor.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Monitor - A input device of computer</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTaA-lD9gDxdKfrj_BwfaTgZi0VAXrBaFJO26J67P51o5U_iEY9i1_EoMvQaKfSFpy4zTl1sPevxXNjUeQb031DXRmVcx2gr11JLoRJAAE5zP7QRwJtN1Da_kehmaCvtkORj3aLVAaFfg/s1600/Printer.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="207" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTaA-lD9gDxdKfrj_BwfaTgZi0VAXrBaFJO26J67P51o5U_iEY9i1_EoMvQaKfSFpy4zTl1sPevxXNjUeQb031DXRmVcx2gr11JLoRJAAE5zP7QRwJtN1Da_kehmaCvtkORj3aLVAaFfg/s320/Printer.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Printer - A input device of computer</td></tr>
</tbody></table>
<div>
<span class="GingerNoCheckEnd"></span>For detailed HTML tutorials, you can visit my <span class="GRcorrect" grphrase="962333d41a089de78e4afdb4f65fc3f0855b2499" grtype="2" id="GRmark_962333d41a089de78e4afdb4f65fc3f0855b2499_another:0">another</span> blog called <a href="http://mycomputertuts.blogspot.com/" target="_blank">My Computer Tuts</a>.</div>
</div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-84736263830768170762011-12-30T22:46:00.000+05:302011-12-30T22:49:24.061+05:30Basics of Internet<div dir="ltr" style="text-align: left;" trbidi="on"><span class="Apple-style-span" style="font-size: large;"><b>Introduction to Internet</b></span><br />
The Internet is a worldwide collection of interconnected computer networks that enables businesses, organizations, governments, and individuals to communicate in a variety of ways. One of the most popular ways users communicate on the Internet is by publishing and interacting with Web pages. You can also use the Internet to send and receive e-mail, chat with other users, and transfer files between <a href="http://computertechtuts.blogspot.com/2011/07/what-is-computer.html" target="_blank">computers</a>.<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwsKVFzdGPgYcbAL2OX6hr68RTY9T5urc_rnQWDJYzOfOoFAkIUttkIDGNoAMcU4IGdhKmhFPuPP0OW6skQ0xNhx0-UzPkvwlVMpo3xVHsXkF845bEkKHGmygulENyprpGKmEHDGgfuYE/s1600/Internet+Explorer.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwsKVFzdGPgYcbAL2OX6hr68RTY9T5urc_rnQWDJYzOfOoFAkIUttkIDGNoAMcU4IGdhKmhFPuPP0OW6skQ0xNhx0-UzPkvwlVMpo3xVHsXkF845bEkKHGmygulENyprpGKmEHDGgfuYE/s200/Internet+Explorer.png" width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Internet Explorer</td></tr>
</tbody></table><b><span class="Apple-style-span" style="font-size: large;">Types of Connections</span></b><br />
<div>Users connect to the Internet through a variety of methods. A relatively inexpensive but slow way to connect is with dialup service, which involves using a modem and a phone line. Faster ways to connect include DSL (digital subscriber line), cable modem, satellite, and ISDN (integrated services digital network). Networks include special wireless transmitters that allow computers to access the Internet wirelessly. Companies that help you connect to the Internet are known as Internet service providers, or ISPs.<br />
<br />
<span class="Apple-style-span" style="font-size: large;"><b>Connection Speeds </b></span><br />
<span class="Apple-style-span" style="font-size: large;"><b></b></span>Connection speeds play an important part in a user’s Internet experience because slower connections result in slower file transfers and Web page viewing. Dialup connections offer the slowest access to the Internet at up to 56 kilobits per second, or Kbps, followed by ISDN connections at 64 to 128 Kbps. DSL usually offers connection speeds of up to 3 megabits per second, or Mbps, while cable modems can achieve speeds of up to 6 Mbps. A Web page that takes about 20 seconds to download via dialup can take less than a second using a cable modem.<br />
<br />
</div><div><b><span class="Apple-style-span" style="font-size: large;">Communication Standards</span></b><br />
The Internet infrastructure relies on a variety of protocols that dictate how computers and networks talk to each other. For example, Transmission Control Protocol/Internet Protocol, or TCP/IP, is a set of rules that control how Internet messages flow between computers. Hyper Text Transfer Protocol, or HTTP, is a set of rules that determine how browsers should request Web pages and how server computers should deliver them. Having agreed-upon protocols allows seamless communication among the many different types of computers that connect to the Internet.<br />
<br />
<span class="Apple-style-span" style="font-size: large;"><b>The World Wide Web </b></span><br />
<span class="Apple-style-span" style="font-size: large;"><b></b></span>The World Wide Web is a giant collection of documents, or pages, stored on computers around the globe. Commonly called the Web, this collection of pages represents a wealth of text, images, audio, and video available to anyone with a computer and an Internet connection. Web pages are stored on servers, which are Internet-connected computers running software that allows them to serve up information to other computers. When you place a text file, image, or other document in a special Web directory on a server, that information is available for other Web users to view.<br />
<br />
<b><span class="Apple-style-span" style="font-size: large;">URLs and Links </span></b><br />
<b><span class="Apple-style-span" style="font-size: large;"></span></b>Every page on the Web has a unique address called a URL, which is short for Uniform Resource Locator. A URL looks like this: http://www.example.com/index.html. If you know a page’s URL, you can type it into a Web browser to view that page over the Internet. You can also view pages by way of hyperlinks, or simply links, which are click-able words or images on Web pages. Every link on a Web page is associated with a URL that leads to another page on the Internet. Users can jump from one Web page to another by clicking links.<br />
<br />
<span class="Apple-style-span" style="font-size: large;"><b>Browsers </b></span><br />
<span class="Apple-style-span" style="font-size: large;"><b></b></span>A Web browser is software that allows you to view and interact with Web pages. When you type a URL or click a link in a Web browser, the browser retrieves the appropriate page from a server on the Internet and displays that page. Microsoft Internet Explorer, Mozilla Firefox, and Apple Safari are the three most popular browsers in use today. Each program has evolved through a number of versions, with newer versions supporting more recent Web features. As you build your pages using <a href="http://computertechtuts.blogspot.com/2011/12/what-is-html.html" target="_blank">HTML</a> code, remember that different browsers may display your pages slightly differently depending on the version.</div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-37225838583313217492011-12-29T20:21:00.000+05:302011-12-29T20:21:53.094+05:30WHAT PIECES ARE FOUND IN A COMPUTER?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: -webkit-auto;"><span class="Apple-style-span" style="border-collapse: collapse;"></span></div><table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;"><tbody>
<tr style="height: 1.15in; mso-yfti-firstrow: yes; mso-yfti-irow: 0;"> <td style="border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Monitor</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-left: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-themecolor: text1; mso-border-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">The CRT or display that shows the words, graphics, etc., to the user. It is a critical part of a user’s interface.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 1;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Motherboard</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A printed circuit board that has (at least) slots to connect cards into.<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: justify;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Often, they also include a CPU and memory.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 2;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Mouse</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">An input device which has one to three buttons and when you move it, it causes the arrow in a Windows display to move.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 3;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Printer</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">An external device that takes commands and data from the computer to place on paper. There are several types of printers: daisy-wheel, matrix, laser, thermal, inkjet, and plotter.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 4;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">RAM</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">“Random Access Memory“. A pool of storage for the CPU. It can be<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">written to/read from in any order (unlike a VCR tape which is serial—<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">you have to wind to the place you want). There are several types of<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: justify;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">RAM: SRAM, DRAM, EDO-RAM.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 5;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">ROM</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">“Read Only Memory“. Memory that has imprinted in it data and<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: justify;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">programs for the CPU which cannot be erased or written to.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 6;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Scanner</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">An external device that is able to optically read in printed material—kind of like a copier, but it stores the image on the computer instead.</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 7;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">UPS</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">“Uninterruptable Power Supply”. This is a box that is like a surge<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">protector but will keep you going even if you lose power. You can plug your computer into. If you have a brown- or black-out, this unit will keep you running for 3 minutes to an hour (certainly enough time to save your work and shutdown the computer).</span></span><span class="Apple-style-span" style="font-family: inherit;"><o:p></o:p></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 8;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">CD-ROM<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A disk made of plastic and aluminum which can store up to 650MB of<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">data. Usually these disks cannot be written to, instead they often are<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">used to distribute software from companies.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 9;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">CPU<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Central Processing Unit. The “brain” of the computer. It executes<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">commands which, eventually, we see as a response to our input.<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Without the CPU, the computer is nothing.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 10;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Hard disk<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A medium to store data for the computer while the power is out. It uses a hard material (typically aluminum).<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 11;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Keyboard<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A typewriter-like tool that has keys. Sends letters or commands to the computer.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 12;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Microprocessor<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A CPU that composes only one chip. Some CPUs may actually be<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">several square feet is size; but, the microprocessor is designed to be<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">100% self-contained in a single chip.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 13;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Modem<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A device that will let your computer talk to other computers through the telephone line.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 14;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">DVD<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">The next generation CD-ROM which will store 10-20x the current<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">capacity.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 15;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Card Slot<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">The slots found on the PC motherboard may be one of five types: ISA EISA, MCA, VESA & PCI.. Slower adapters (like I/O boards) can be ISA. But for the best performance, use VESA or PCI for hard drives, CD-ROMs or Video adapters.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 16;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Cable Cache<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">A thick wire that connects the computer to the external device or power. An interface between the CPU and the memory (RAM and ROM). It helps the CPU keep running even though the RAM may be too slow. It does this by keeping a copy of what the processor has read/written.<o:p></o:p></span></span></div></td> </tr>
<tr style="height: 1.15in; mso-yfti-irow: 17; mso-yfti-lastrow: yes;"> <td style="border-top: none; border: solid black 1.0pt; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;"><b><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Adapter<o:p></o:p></span></span></b></div></td> <td style="border-bottom: solid black 1.0pt; border-left: none; border-right: solid black 1.0pt; border-top: none; height: 1.15in; mso-border-alt: solid black .5pt; mso-border-bottom-themecolor: text1; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-right-themecolor: text1; mso-border-themecolor: text1; mso-border-top-alt: solid black .5pt; mso-border-top-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt;"> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">Most of the time it refers to a card that plugs into the motherboard<o:p></o:p></span></span></div><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-size: 12pt;"><span class="Apple-style-span" style="font-family: inherit;">adding special capabilities not originally found on the computer. Other times it refers to tools to convert one connector type to another.<o:p></o:p></span></span></div></td> </tr>
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</span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-11127082724878081682011-12-27T21:53:00.002+05:302012-05-13T17:24:06.447+05:30What are Output Devices Of Computer?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: justify;"><b>Output Devices: </b><a href="http://computertechtuts.blogspot.com/2011/12/input-and-output-devices-of-computer.html" target="_blank">Output Devices</a> of computer are those devices which are used to communicate the computer for displaying process data to the user which is operating the computer. These days many devices are used as output devices of a computer. Most of the computer users only aware of Monitor and Printer as output devices of computer. There are also other output devices which we are using as output devices of a computer. Below are the list of computer output devices.<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN5DfDUOdjCS7sfLSHW9siTCXU1XIiHbVr-Eb7GBhLxwMoJABPSIcK0eNoNjg5JdTrEN-N-nvJ2sHHR-tZIxkJocnrFIXvwTTbxanm_866DPVRoAmK1zQOz3oQCKFAfW6Zc8BFrfqI08M/s1600/output-device.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="157" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN5DfDUOdjCS7sfLSHW9siTCXU1XIiHbVr-Eb7GBhLxwMoJABPSIcK0eNoNjg5JdTrEN-N-nvJ2sHHR-tZIxkJocnrFIXvwTTbxanm_866DPVRoAmK1zQOz3oQCKFAfW6Zc8BFrfqI08M/s200/output-device.jpg" width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Output Devices Of Computer</td></tr>
</tbody></table>An <b>output device</b> is any piece of <a class="mw-redirect" href="http://computertechtuts.blogspot.com/2011/07/write-down-components-of-computer.html" target="_blank" title="Computer hardware">computer hardware</a> equipment used to communicate the results of <a class="mw-redirect" href="http://computertechtuts.blogspot.com/2011/11/how-does-computer-work.html" target="_blank" title="Data processing">data processing</a> carried out by an information processing system (such as a <a href="http://computertechtuts.blogspot.com/2011/07/what-is-computer.html" target="_blank" title="Computer">computer</a>) to the outside world.</div><div style="text-align: justify;"><br />
</div><div style="text-align: justify;">In computing, input/output, or I/O, refers to the communication between an information processing system (such as a <a href="http://computertechtuts.blogspot.com/2011/07/what-is-computer.html" target="_blank" title="Computer">computer</a>), and the outside world. <span class="GRcorrect" grphrase="dafccfca673fe817626b775ec14e29028f574837" grtype="3" id="GRmark_dafccfca673fe817626b775ec14e29028f574837_Inputs:0">Inputs</span> are the signals or data sent to the system, and outputs are the signals or data sent by the system to the outside.</div><div style="text-align: justify;">Examples of output devices:</div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: right; margin-left: 1em; text-align: justify;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5wSftLM2fB5Hz76tjuVsYEn_srg4PVi6VZ6nHwFCNw9EWo8iiZvv4LLRXk6qoiMoPHWV04xt5aUJeuyo3QqKPE1YnR-ZRK9-7YVhKAUQIVQmcOj8Qc-vURK7whYSWPk3wZEG0jHnTxJI/s1600/output+devices.gif" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="159" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5wSftLM2fB5Hz76tjuVsYEn_srg4PVi6VZ6nHwFCNw9EWo8iiZvv4LLRXk6qoiMoPHWV04xt5aUJeuyo3QqKPE1YnR-ZRK9-7YVhKAUQIVQmcOj8Qc-vURK7whYSWPk3wZEG0jHnTxJI/s200/output+devices.gif" width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Headphone - Output Device</td></tr>
</tbody></table><ul><li style="text-align: justify;">Speakers</li>
<li style="text-align: justify;">Headphones</li>
<li style="text-align: justify;">Screen (Monitor)</li>
<li style="text-align: justify;">Printer</li>
</ul><div style="text-align: justify;">Some more images of <b>Output Devices :</b></div><div style="text-align: justify;"><br />
</div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0viiLI3EG6arZ-smzTFGtkWdYAOCF8MT0pPkbZq1OGwwgWxpBvLXHhQaZ15j1PjVOQVcsIdczMsvGOcXTt8Wff5b7mLLtrkCYIOeMvb_qzZKczwXDPyLwsISeyL0uHwTCaWFh0DoPSlE/s1600/Monitor.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="219" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0viiLI3EG6arZ-smzTFGtkWdYAOCF8MT0pPkbZq1OGwwgWxpBvLXHhQaZ15j1PjVOQVcsIdczMsvGOcXTt8Wff5b7mLLtrkCYIOeMvb_qzZKczwXDPyLwsISeyL0uHwTCaWFh0DoPSlE/s320/Monitor.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Monitor - Output Device</td></tr>
</tbody></table><br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTaA-lD9gDxdKfrj_BwfaTgZi0VAXrBaFJO26J67P51o5U_iEY9i1_EoMvQaKfSFpy4zTl1sPevxXNjUeQb031DXRmVcx2gr11JLoRJAAE5zP7QRwJtN1Da_kehmaCvtkORj3aLVAaFfg/s1600/Printer.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="207" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTaA-lD9gDxdKfrj_BwfaTgZi0VAXrBaFJO26J67P51o5U_iEY9i1_EoMvQaKfSFpy4zTl1sPevxXNjUeQb031DXRmVcx2gr11JLoRJAAE5zP7QRwJtN1Da_kehmaCvtkORj3aLVAaFfg/s320/Printer.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Printer - Output Device</td></tr>
</tbody></table><br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcAYhnM2Cd40Q61774MgV6492K0X0n24tWtUvW_Cr6K8jznutKLPtifX7V1bqW7_5FOxSb5gntciYjDYYWLff0Q7U-t-F3P4kOqfj0XzyiCuV5B08GZd0ZrOILRGHmnrVe2L0rX3qi2SQ/s1600/speakers.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcAYhnM2Cd40Q61774MgV6492K0X0n24tWtUvW_Cr6K8jznutKLPtifX7V1bqW7_5FOxSb5gntciYjDYYWLff0Q7U-t-F3P4kOqfj0XzyiCuV5B08GZd0ZrOILRGHmnrVe2L0rX3qi2SQ/s1600/speakers.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Speakers - Output Device</td></tr>
</tbody></table><div style="text-align: justify;"><br />
</div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-61193220527368995862011-12-27T21:39:00.002+05:302012-05-13T17:42:23.673+05:30What Are Input Devices Of Computer?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: justify;">In the world of computing, <b>input devices</b> are any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a <a href="http://computertechtuts.blogspot.com/2011/07/what-is-computer.html" target="_blank" title="Computer">computer</a> or other information appliance. Input and <a href="http://computertechtuts.blogspot.com/2011/07/what-is-input-and-out-devices.html" target="_blank" title="Output device">output devices</a> make up the hardware interface between a computer and a scanner. Normally, Input devices of computers are used to give instructions to the computer and output has to be processed through processing devices to output devices. Keyboard and mouse are two famous input devices of a computer which is used in every computer. These days we are also using some latest input devices like Light Pen, Trackball Mouse, and pen drives. Below are some images of <a href="http://computertechtuts.blogspot.com/2011/12/input-and-output-devices-of-computer.html" target="_blank">input devices</a> of <span class="GRcorrect" grphrase="9ad1dde90d15d516305950b3238ebd3ce12bc945" grtype="3" id="GRmark_9ad1dde90d15d516305950b3238ebd3ce12bc945_computer:0">computer</span>:</div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3u3txpx168GTXVuAgNhVv_rjElPCt2kJJ4OiVo81fyXTHUs8LTvGF6Y-NAOjXn724ET9iK6Ru7gHuM6ebH7wZ2YAltfTUYR8jpbE32CoFNqYZA8_mUe8D-rhr8K40-zCzNngE3DWH8qg/s1600/keyboard.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="287" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3u3txpx168GTXVuAgNhVv_rjElPCt2kJJ4OiVo81fyXTHUs8LTvGF6Y-NAOjXn724ET9iK6Ru7gHuM6ebH7wZ2YAltfTUYR8jpbE32CoFNqYZA8_mUe8D-rhr8K40-zCzNngE3DWH8qg/s320/keyboard.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Keyboard - Input Device</td></tr>
</tbody></table><div style="text-align: justify;"><br />
</div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJjg294mEIEG-RnrFxZlFt_CUZpmalY1squ0ut5gHLkjjUotaT7FN1WoZSUPcVeRRGxoqH8KqcGic-cnkFu_yBlv5ooeGgtvrhQzJLOV0djqL-ieG2HzH5KdUicujpDdLrZBZPWdDCEx4/s1600/mouse.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJjg294mEIEG-RnrFxZlFt_CUZpmalY1squ0ut5gHLkjjUotaT7FN1WoZSUPcVeRRGxoqH8KqcGic-cnkFu_yBlv5ooeGgtvrhQzJLOV0djqL-ieG2HzH5KdUicujpDdLrZBZPWdDCEx4/s1600/mouse.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Mouse - Input Device</td></tr>
</tbody></table><div style="text-align: justify;"><br />
</div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYJnKs-r4y9PPKpO7zSm6t9J7EX2G8kZeehMPAo4ysQg62tFEckfJvQ2q2CwkZWFbgphu2IytmJKlTvjr9ZTp2CMm1WvQID98CSm26-biDaECyqt2d1TjeKZ78g0JUjLYd4oyAtp7UqHU/s1600/scanner.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="214" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYJnKs-r4y9PPKpO7zSm6t9J7EX2G8kZeehMPAo4ysQg62tFEckfJvQ2q2CwkZWFbgphu2IytmJKlTvjr9ZTp2CMm1WvQID98CSm26-biDaECyqt2d1TjeKZ78g0JUjLYd4oyAtp7UqHU/s320/scanner.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Scanner - Input Device</td></tr>
</tbody></table><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig6DTR-uc9POIaSeJj3PQ_Ci1giHZkaR00n9M5wUH5Lc2fZATCUrDx6NxxJdZW7hZPGwaDJoosoUpwv8NkIlyKsElj0JJj248hoANSZNRCSydLJ6_Wh2UoD25HzBUvDFPykani_iJgVv0/s1600/Input+Devices+-+Mouse-Keyboard.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig6DTR-uc9POIaSeJj3PQ_Ci1giHZkaR00n9M5wUH5Lc2fZATCUrDx6NxxJdZW7hZPGwaDJoosoUpwv8NkIlyKsElj0JJj248hoANSZNRCSydLJ6_Wh2UoD25HzBUvDFPykani_iJgVv0/s1600/Input+Devices+-+Mouse-Keyboard.jpeg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Input Devices - Keyboard And Mouse</td></tr>
</tbody></table><div style="text-align: justify;"><br />
</div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsJBh1HLC1z4kXD915ypk06LxTDDr03PNb_C3R6e4-zcdfhvM_xH56rh3h6lxPpSmF5a2lDhVwyFpHltMXkcJQzAUp7-5vHLpbEOpaJAxHlJR8M6GojtTeQDb7_NORedQmwnIuGFk2L5o/s1600/usb+stick.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsJBh1HLC1z4kXD915ypk06LxTDDr03PNb_C3R6e4-zcdfhvM_xH56rh3h6lxPpSmF5a2lDhVwyFpHltMXkcJQzAUp7-5vHLpbEOpaJAxHlJR8M6GojtTeQDb7_NORedQmwnIuGFk2L5o/s1600/usb+stick.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">USB/Pen Drive - Input Device<br />
<br />
<br />
</td></tr>
</tbody></table><div style="text-align: justify;">Many input devices can be classified according to:</div><ul><li style="text-align: justify;"><span class="GRcorrect" grphrase="087dbd8ef657c115113ae4a37505e9249e4dcbef" grtype="1" id="GRmark_087dbd8ef657c115113ae4a37505e9249e4dcbef_modality:0">modality</span> of input (e.g. <span class="GRcorrect" grphrase="230e4ecb8ecd5ea6a62c956ea301aa4b0aba854d" grtype="1" id="GRmark_230e4ecb8ecd5ea6a62c956ea301aa4b0aba854d_mechanical:0">mechanical</span> motion, audio, visual, etc.)</li>
<li style="text-align: justify;"><span class="GRcorrect" grphrase="d3e276d6e6314105fff4f69169858bb3a7344fb2" grtype="1" id="GRmark_d3e276d6e6314105fff4f69169858bb3a7344fb2_the:0">the</span> input is discrete (e.g. <span class="GRcorrect" grphrase="f048b07a29ff37eb83afacfbc425c19fe86a5c3d" grtype="1" id="GRmark_f048b07a29ff37eb83afacfbc425c19fe86a5c3d_key:0">key</span> presses) or continuous (e.g. <span class="GRcorrect" grphrase="f19d5d7a8c5908d989ffd87b88e46d1c0ab647a1" grtype="1" id="GRmark_f19d5d7a8c5908d989ffd87b88e46d1c0ab647a1_a:0">a</span> mouse's position, though digitized into a discrete quantity, is fast enough to be considered continuous)</li>
<li style="text-align: justify;"><span class="GRcorrect" grphrase="afc171a8b490578e2ef162c688c102144a15cf47" grtype="1" id="GRmark_afc171a8b490578e2ef162c688c102144a15cf47_the:0">the</span> number of degrees of freedom involved (e.g. <span class="GRcorrect" grphrase="8acde1c32f6ea182d0031c17fe7d5e5a798b4938" grtype="1" id="GRmark_8acde1c32f6ea182d0031c17fe7d5e5a798b4938_two-dimensional:0">two-dimensional</span> traditional mice, or three-dimensional navigators designed for CAD applications)</li>
</ul><div style="text-align: justify;">Pointing devices, which are input devices used to specify a position in space, can further be classified according to:</div><ul><li style="text-align: justify;">Whether the input is direct or indirect. With direct input, the input space coincides with the display space, i.e. <span class="GRcorrect" grphrase="83154f4a462675a15347c1f44a0d5cfcc3bc172d" grtype="2" id="GRmark_83154f4a462675a15347c1f44a0d5cfcc3bc172d_pointing:0">pointing</span> is done in the space where visual feedback or the pointer appears. Touchscreens and light pens involve direct input. Examples involving indirect input include the mouse and trackball.</li>
<li style="text-align: justify;">Whether the positional information is absolute (e.g. <span class="GRcorrect" grphrase="22d0a81728c190390d4499ff00be0704cee6286a" grtype="1" id="GRmark_22d0a81728c190390d4499ff00be0704cee6286a_on:0">on</span> a touch screen) or relative (e.g. <span class="GRcorrect" grphrase="dbc3a0eaa1137bc4da14d304415a3509567f20ff" grtype="1" id="GRmark_dbc3a0eaa1137bc4da14d304415a3509567f20ff_with:0">with</span> a mouse that can be lifted and repositioned)</li>
</ul><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQN1gBpnvSBK5M1uVtJnzp_I6b8LLE67DtYRSpPwgMG-qj777THlYKFvA42lUen40_-mtPqjZZ2e0lBzH9aiHNA22nQAZOQMPN7wu8NVJSR0BiefjLwawMx6CAGxJ0US95AOqvAqnI6yM/s1600/input+devices.gif" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="176" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQN1gBpnvSBK5M1uVtJnzp_I6b8LLE67DtYRSpPwgMG-qj777THlYKFvA42lUen40_-mtPqjZZ2e0lBzH9aiHNA22nQAZOQMPN7wu8NVJSR0BiefjLwawMx6CAGxJ0US95AOqvAqnI6yM/s320/input+devices.gif" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Mouse - Input Device</td></tr>
</tbody></table><div style="text-align: justify;"><br />
</div><div style="text-align: justify;">Direct input is almost necessarily absolute, but indirect input may be either absolute or relative. For example, digitizing graphics tablets that do not have an embedded screen involve indirect input and sense absolute positions and are often run in an absolute input mode, but they may also be set up to simulate a relative input mode where the stylus or puck can be lifted and repositioned.<br />
<br />
Read detailed article about <b>Input Devices</b> here : <a href="http://www.indiastudychannel.com/resources/115991-INPUT-DEVICES.aspx" target="_blank">http://www.indiastudychannel.com/resources/115991-INPUT-DEVICES.aspx</a></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-25622442123323818672011-12-25T20:49:00.002+05:302012-01-05T22:16:22.237+05:30What is HTML?<div dir="ltr" style="text-align: left;" trbidi="on"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML is a language for describing web pages.</span><br />
<ul type="disc"><li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML stands for <b>H</b>yper <b>T</b>ext <b>M</b>arkup <b>L</b>anguage<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML is not a programming language, it is a <b>markup language</b><o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">A markup language is a set of <b>markup tags</b><o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML uses <b>markup tags</b> to describe web pages <o:p></o:p></span></li>
</ul><div><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;"><span class="Apple-style-span"></span></span><br />
<div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; mso-outline-level: 2;"><span class="Apple-style-span"><b><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML Tags<o:p></o:p></span></b></span></div><div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"><span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML markup tags are usually called HTML tags<o:p></o:p></span></span></div><ul type="disc"><li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML tags are keywords surrounded by <b>angle brackets </b>like <html><o:p></o:p></span></span></li>
<span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;"> </span>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML tags normally <b>come in pairs</b> like <b> and </b><o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">The first tag in a pair is the <b>start tag,</b> the second tag is the <b>end tag</b><o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">Start and end tags are also called <b>opening tags</b> and <b>closing tags</b><o:p></o:p></span></li>
</span></ul><div><span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;"><b></b></span></span><br />
<div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; mso-outline-level: 2;"><span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;"><b>HTML Documents = Web Pages</b><o:p></o:p></span></span></div><ul type="disc"><li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in;"><span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML documents describe web pages<o:p></o:p></span></span></li>
<span class="Apple-style-span"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;"> </span>
<li class="MsoNormal" style="line-height: normal;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML documents contain HTML tags and plain text<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">HTML documents are also called web pages</span></li>
</span></ul><span class="Apple-style-span" style="font-family: inherit;">Know more about <b>HTML </b>Tags : <a href="http://www.indiastudychannel.com/resources/145204-How-use-HTML-tags.aspx" target="_blank">http://www.indiastudychannel.com/resources/145204-How-use-HTML-tags.aspx</a> </span></div></div><div><span class="Apple-style-span" style="font-family: 'Times New Roman', serif; font-size: x-large;"><span class="Apple-style-span" style="font-size: 20px;"><b><br />
</b></span></span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-36430205424564049062011-12-25T20:38:00.000+05:302011-12-25T21:04:12.826+05:30What is SQL DML and DDL?<div dir="ltr" style="text-align: left;" trbidi="on"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can be divided into two parts: The Data Manipulation Language (DML) and the Data Definition Language (DDL).</span><br />
<div style="text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">The query and update commands form the DML part of SQL:<o:p></o:p></span></div><ul type="disc"><li class="MsoNormal" style="line-height: normal; mso-list: l1 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SELECT - extracts data from a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l1 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">UPDATE - updates data in a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l1 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">DELETE - deletes data from a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l1 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">INSERT INTO - inserts new data into a database<o:p></o:p></span></li>
</ul><div style="text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">The DDL part of SQL permits database tables to be created or deleted. It also defines indexes (keys), specify links between tables, and impose constraints between tables. The most important DDL statements in SQL are:<o:p></o:p></span></div><ul type="disc"><li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">CREATE DATABASE - creates a new database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">ALTER DATABASE - modifies a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">CREATE TABLE - creates a new table<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">ALTER TABLE - modifies a table<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">DROP TABLE - deletes a table<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">CREATE INDEX - creates an index (search key)<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo2; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">DROP INDEX - deletes an index </span><span class="Apple-style-span" style="font-family: 'Times New Roman', serif;"><o:p></o:p></span></li>
</ul></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-57010477695137451212011-12-25T20:35:00.000+05:302011-12-25T21:05:46.780+05:30What is SQL?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="text-align: left;"></div><ul style="text-align: left;"><li><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL stands for Structured Query Language</span></li>
<li><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL lets you access and manipulate databases</span></li>
<li><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL is an ANSI (American National Standards Institute) standard</span></li>
</ul><div><span class="Apple-style-span" style="font-size: 24px; font-weight: bold; line-height: 27px;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">What Can SQL do?</span></span></div><div> <br />
<ul type="disc"><li class="MsoNormal" style="line-height: normal; mso-list: l0 level1 lfo1; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; tab-stops: list .5in; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can execute queries against a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can retrieve data from a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can insert records in a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can update records in a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can delete records from a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can create new databases<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can create new tables in a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can create stored procedures in a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can create views in a database<o:p></o:p></span></li>
<li class="MsoNormal" style="line-height: normal; text-align: justify;"><span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif;">SQL can set permissions on tables, procedures, and views</span><span class="Apple-style-span" style="font-family: 'Times New Roman', serif;"><o:p></o:p></span></li>
</ul></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-87141636334754383382011-11-06T12:14:00.000+05:302011-11-06T12:14:50.201+05:30Microsoft Office 2010<div dir="ltr" style="text-align: left;" trbidi="on"><div class="post-bodycopy clearfix" style="text-align: justify;">Despite it being the second most used application on my work computer (behind the Mozilla Firefox browser),it’s still impossible for me to get excited about a new edition of the Microsoft Office suite.<br />
With the final release due in a couple of months,Microsoft have provided a beta test version of Office 2010 that’s free for members of the public to download. The beta test version will run unhindered until October 2010 at which point users must decide whether they wish to purchase the final release or have it removed from their hard drive.<br />
For the costs involved the majority of home users may still be better off with the free OpenOffice Suite (www.openoffice.org) as it should provide all the features you are likely to need at no cost. This having been said,the Office Suite has remained a popular flagship product over the years due to business users often requiring a specific function or application only present in the Microsoft offering. I,for example,use Outlook on a regular basis and haven’t yet found an alternative that suits my needs.<br />
Having not been the biggest fan of Office 2007 (especially the ‘ribbon’ interface discussed in the past) I wasted no time downloading the 64-bit professional version of the beta to put it through its paces. I have now been using it for a couple of days it does appear notably faster than Office 2007 and certainty incredibly stable. The speed increase could easily be attributed to the fact that a 64-bit version of the application is now available to run on modern 64-bit computers.<br />
Office Professional 2010 includes Word,Excel,PowerPoint,InfoPath,OneNote,Outlook,Access and Publisher. The home edition (also currently available in beta) includes Word,Excel,PowerPoint,Outlook and OneNote. After the official release,computer manufacturers may choose to bundle new machines with a starter edition of Office which includes just Excel and Word;this version of Office will replace the aging Microsoft Works Suite.<br />
Although the ribbon interface remains,it is certainly a lot clearer than that provided with Office 2007;the confusing Office orb has been replaced with the familiar file menu,there are fewer distracting borders,a neutral colour scheme and most importantly it is customisable to the users individual tastes. The applications look and behave like a ‘family’ now and have become more intuitive to use as a result of the more refined user interface.<br />
An important new feature due for release in the final version but missing from the beta is the ‘Web Apps’ which will extend the Office functionality to a compatible web browser. Very similar in form to Google Docs,Office Web Apps allows users to collaborate,edit and share Office documents online. This is an incredibly important new feature that has no doubt come about due to the success of Google Docs and one that I would like to field test when complete.<br />
This article isn’t long enough to go in to details about minor new features so I will summarise by observing that the changes made from Office 2007 to Office 2010 are evolutionary rather than revolutionary;very much in the same way that Windows 7 was an evolutionary change compared with Vista. Excluding the Web Apps there is nothing substantially new however the minor improvements are certainly welcome as is the chance to road test a new piece of software completely free of charge for a year.<br />
Users interested in downloading the beta version of Office 2010 should visit www.microsoft.com/office/2010 to get their hands on a copy.<br />
<br />
Reference : <a href="http://www.computerarticles.co.uk/" target="_blank">http://www.computerarticles.co.uk</a> </div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-78509974832147895532011-11-06T12:00:00.000+05:302011-11-06T12:16:13.399+05:30Windows 7 Hidden Gems –Additional functionality<div dir="ltr" style="text-align: left;" trbidi="on"><div class="post-bodycopy clearfix" style="text-align: justify;">I’ve been living with Windows 7 for a good few months now and in that time have discovered a couple of little ‘hidden gems’ which I wanted to share with you:<br />
<b>Aero Shake</b><br />
In Windows 7,when you click on the title bar of any window and shake it every other open window gets minimized straight back in to your task bar,reducing clutter on your screen. This allows you to focus on the one window and then when ready shake it again and the other windows will reappear.<br />
There are additional Aero user interface related features which make a welcome debut. These include Aero Peek which allows you to immediately see what’s going on in an application just by hovering over the icon in the task bar and Aero Snap which quickly allows you to rearrange your desktop by slamming any open window against the left,right or top side of your screen;try it!<br />
<b>Sticky Notes</b><br />
Proof,if needed,that some of the simplest applications make the largest differences to the end user experience. One of the most commonly used applications on my PC used to be the incredibly simple ‘notepad’ as I find that my working life works a lot better if I simplify everything down in to lists.<br />
Rather than jotting notes on random pieces of paper that will almost certainly get lost throughout the day I used to dump everything in notepad and ensure that every line was eventually cleared so I was left with a blank page before I went home.<br />
Sticky notes have a similar application. To get started click on the start menu and type in ‘sticky’ and begin typing tasks for the day or things to remember in to little post it notes that stick to your screen. When complete either close or minimize the application to get back to the job in hand,safe in the knowledge that once Sticky Notes are reopened,these tasks will reappear exactly as you left them. When a task has been completed or the note simply isn’t needed,it can be deleted with one click of the mouse.<br />
<b>Improved Calculator</b><br />
Windows 7 calculator has improved considerably;now rather than being an arithmetic only affair,it can be operated in four modes –Standard,Scientific,Programmer and Statistical. It can also perform unit conversion,for example grams to ounces,metres to feet and Celsius to Fahrenheit along with a couple of unexpected features such as the ability to calculate the number of days between two dates or the value of your mortgage repayment. Surely in the next version of Windows the calculator application will finally gain graphical capabilities.<br />
<b>Windows Disk Image Burner</b><br />
For some time now the preferred method of copying and storing CD’s and DVD’s has been by using an ISO file;a single image which includes the contents of an entire disk. Reading these files used to require a specific application (the likes of which I’ve covered previously in Click) but every version of Windows 7 now includes support for these straight out the box;simply double click on the ISO file that you wish to burn,insert a blank CD or DVD and you’re done.<br />
<br />
Reference : <a href="http://www.computerarticles.co.uk/" target="_blank">http://www.computerarticles.co.uk</a> </div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-5020169253989201442011-11-06T09:30:00.000+05:302011-11-06T09:30:16.602+05:30What is Operating System?<div dir="ltr" style="text-align: left;" trbidi="on"> <br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Operating System:- </span><span style="color: black; font-family: Arial;"><span> </span>Operating System is an interface between user and hardware.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial; font-weight: bold;"><span> </span></span><span style="color: black; font-family: Arial;">It is used to manage the resources of a system and to create an environment where a user can work.</span></span></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJTuZVjzf4pL7J92Ss7cWDp7O7BmdqhzeMYa3TkmzI7NeUeIeatW54LkcQWyRU3kjJZcTZX7PsyIxNxBxBNpTwgWfnkBZB1_AlGCQuphH71MSF6q8P1RMNOv7iCPXgfhf2GSfX1noJV4k/s1600/Operating+System.gif" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="288" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJTuZVjzf4pL7J92Ss7cWDp7O7BmdqhzeMYa3TkmzI7NeUeIeatW54LkcQWyRU3kjJZcTZX7PsyIxNxBxBNpTwgWfnkBZB1_AlGCQuphH71MSF6q8P1RMNOv7iCPXgfhf2GSfX1noJV4k/s320/Operating+System.gif" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Operating System</td></tr>
</tbody></table><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><br />
</div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><b><span style="font-size: small;"><span style="color: black; font-family: Arial;">Write down the task of an<span> </span> Operating System:</span></span></b></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"> </div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 7.68pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Task of an Operating System:-</span></span></div><ul><li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">I/O Management</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Power Management</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Resources Management</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">File Management</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Process Management</span></span></li>
</ul><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><b><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></b><span style="font-size: small;"><span style="color: black; font-family: Arial;"></span><span style="color: black; font-family: Arial; font-weight: bold;"> </span></span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-41884761173710204722011-11-06T09:24:00.000+05:302011-11-06T09:24:26.038+05:30What is the difference between Software and Hardware?<div dir="ltr" style="text-align: left;" trbidi="on"> <br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 6.72pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="font-size: large;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Software<span style="font-size: small;">:</span></span></span><span style="color: black; font-family: Arial;"> Software is the collection of a programs that when executed gives a proper output.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"><span> </span>OR</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 6.72pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial; font-weight: bold;"><span> </span>Software</span><span style="color: black; font-family: Arial;"> is a set of logically related programs which is used to carry out a task.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;">Example:- MS-Paint, Notepad, MS-Word. </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><br />
</div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial; font-weight: bold;"><span style="font-size: large;">Hardware</span>:</span><span style="color: black; font-family: Arial;"> </span><span style="color: black; font-family: Arial;">Hardware are electrical, Mechanical and </span><span style="color: black; font-family: Arial;">Magnetical</span><span style="color: black; font-family: Arial;"> parts of computer which we can see or touch.</span><span style="color: black; font-family: Arial;"></span><span style="color: black; font-family: Arial;"> </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;">Example:- Monitor, keyboard, Mouse.<span> </span></span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"><span> </span><br />
</span></span><span style="font-size: small;"><span style="color: black; font-family: Arial;"><br />
</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 2.25in; margin-top: 3.84pt; text-align: left; text-indent: -0.25in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 2.25in; margin-top: 3.84pt; text-align: left; text-indent: -0.25in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 2.25in; margin-top: 3.84pt; text-align: left; text-indent: -0.25in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-27681381665724093262011-11-06T09:17:00.000+05:302011-11-06T09:17:16.511+05:30Describe the memory units for memory measurement?<div dir="ltr" style="text-align: left;" trbidi="on"> <br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="font-size: large;"><b><span><span></span></span></b></span><span style="color: black; font-family: Arial;"><span style="font-size: large;"><b>Memory Unit</b></span>:- The smallest element of data is called binary digit. Its also called BITS.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">The BIT can have a value of 0 (OFF) and 1 (ON).</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><b><span style="font-size: large;"><span style="color: black; font-family: Arial;">Memory Unit</span></span></b><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"> <div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;">1 Byte<span> </span>8 Bits</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;">1 Kilo Byte<span> </span>1024 Bytes</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;">1 Mega Byte<span> </span>1024<span> </span> KB</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;">1 </span><span style="color: black; font-family: Arial;">Gega</span><span style="color: black; font-family: Arial;"> Byte<span> </span>1024 MB</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;">1 </span><span style="color: black; font-family: Arial;">Tera</span><span style="color: black; font-family: Arial;"> Byte<span> </span>1024 GB</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;">1 </span><span style="color: black; font-family: Arial;">Peta</span><span style="color: black; font-family: Arial;"> Byte<span> </span>1024 TB</span></span></div><span style="font-size: small;"> </span><span style="font-size: small;"><span style="color: black; font-family: Arial;"><br />
</span></span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-36457794653881013532011-11-06T09:08:00.000+05:302011-11-06T09:14:33.598+05:30What is Memory? How many types of memory we use in a computer? Describe.<div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-size: small;"></span><br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"><span style="font-size: large;"><b>Memory</b></span>: Memory is something which a computer need for data processing as well as future references.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: left;"><tbody>
<tr><td style="text-align: center;"><span style="font-size: small;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6a7KrgioMS7ABqIWrXJ5H7ZBLFwrXg5R-MQWseQZF8rKcfghIA1itKd6CyVNPdR-Fh_U_5apBe-eFVqOoSscL6VblIdbDc-WkKKxQkRkDXtd0ijr3dILTHrQBdsAiXipleb1_luL98RY/s1600/computer+memory.jpg" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6a7KrgioMS7ABqIWrXJ5H7ZBLFwrXg5R-MQWseQZF8rKcfghIA1itKd6CyVNPdR-Fh_U_5apBe-eFVqOoSscL6VblIdbDc-WkKKxQkRkDXtd0ijr3dILTHrQBdsAiXipleb1_luL98RY/s1600/computer+memory.jpg" /></a></span></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;">Computer Memory - RAM</span><br />
</td></tr>
</tbody></table><span style="font-size: small;"><span style="color: black; font-family: Arial;">There are two types of memory:</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;">1. <span style="color: black; font-family: Arial;">Primary Memory</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;">2.<span style="color: black; font-family: Arial;"> Secondary Memory</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: large;"><span style="color: black; font-family: Arial;">Primary Memory</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.67in; margin-top: 6.72pt; text-align: left; text-indent: -0.67in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> Its stores all the data temporarily. If computer gets shutdown, all the data get lost.</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> It is also called volatile memory.</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> Example: RAM, ROM.</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> RAM :- Random Access Memory.</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> ROM :- Read Only Memory. </span></span></div><span style="font-size: small;"> </span><span style="font-size: large;"><span style="color: black; font-family: Arial;"><br />
</span></span><br />
<span style="font-size: large;"><span style="color: black; font-family: Arial;"> </span><span style="color: black; font-family: Arial;">Secondary Memory<span> </span></span></span><br />
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<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> Its stores all the data permanently. It is also called versatile memory.</span></span></div><span style="font-size: small;"> </span><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span>•</span></span><span style="color: black; font-family: Arial;"> Example: Hard Disk, Floppy Disk, CD, DVD.</span></span></div><span style="font-size: small;"> </span><br />
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</div><div class="separator" style="clear: both; text-align: center;"></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-28291445214507154402011-11-06T09:02:00.000+05:302011-11-06T09:02:43.885+05:30What is processing and storage devices? Describe with examples.<div dir="ltr" style="text-align: left;" trbidi="on"> <br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 6.72pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Processing Devices:</span><span style="color: black; font-family: Arial;"> Processing devices are those devices which is used by computer for processing the instructions and other data.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Example: C.P.U, Mother Board, System Unit</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTz4I4PH2sxGWHibIT0JSM6qNBakl0XGIXUmX5GTzcNgvY0yWGHvlILi_PGox-sSqhDuYD0uynGXlYV7xDc5gf26TllJcEVSdFFbVasq6-1U5Vct4I0lt0FvXJwtG4ThjZQX85q975CjA/s1600/Processing+and+storage+devices.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="292" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTz4I4PH2sxGWHibIT0JSM6qNBakl0XGIXUmX5GTzcNgvY0yWGHvlILi_PGox-sSqhDuYD0uynGXlYV7xDc5gf26TllJcEVSdFFbVasq6-1U5Vct4I0lt0FvXJwtG4ThjZQX85q975CjA/s320/Processing+and+storage+devices.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Processing & Storage Devices</td></tr>
</tbody></table><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 6.72pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Storage Devices:</span><span style="color: black; font-family: Arial;"> Storage devices are those devices which is used to store data for processing as well as future references.</span></span></div><div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Example: Hard Disk, Floppy Disk, CD (Compact Disk), DVD (Digital Versatile Disk).</span></span></div></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-38491822826793781402011-11-06T08:57:00.000+05:302011-11-06T08:57:57.833+05:30Write down the generations of computer.<div dir="ltr" style="text-align: left;" trbidi="on"> <br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 5.76pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="font-size: large;"><b><span style="color: black; font-family: Arial;">There are five generations of computers:-</span></b></span></span></div><ul style="text-align: left;"><li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">First Generation</span><span style="color: black; font-family: Arial;"> (1940-1956)- </span><span style="color: black; font-family: Arial; font-weight: bold;">Vacuum Tubes.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Second Generation </span><span style="color: black; font-family: Arial;">(1956-1963)- </span><span style="color: black; font-family: Arial; font-weight: bold;">Transistors.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Third Generation </span><span style="color: black; font-family: Arial;">(1964-1971)- </span><span style="color: black; font-family: Arial; font-weight: bold;">Integrated Circuits (IC).</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Fourth Generation </span><span style="color: black; font-family: Arial;">(1971-Present)-</span><span style="color: black; font-family: Arial; font-weight: bold;"> Micro Processors (VLSI)</span><span style="color: black; font-family: Arial; font-weight: bold;">.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial; font-weight: bold;">Fifth Generation </span><span style="color: black; font-family: Arial;">(Present and Beyond)- </span><span style="color: black; font-family: Arial; font-weight: bold;">Artificial Intelligence (AI).</span></span></li>
</ul><br />
<span style="font-size: small;"><span style="color: black; font-family: Arial; font-weight: bold;"> </span></span><br />
</div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-18180799683255204982011-11-06T08:54:00.000+05:302011-11-06T08:54:31.706+05:30How many types of computer? Describe.<div dir="ltr" style="text-align: left;" trbidi="on"> <br />
<div style="direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="font-size: large;"><b><span style="color: black; font-family: Arial;">There are four types of computers:-</span></b></span></span></div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: right; margin-left: 1em; text-align: right;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAsaJvvxhAVZ0HQ5pmr8vowN44JqZzr26a8Nrljfdj40oZKnqmtQd8mayZQC3-Y6gyi4xEz74P9-BmfhK5pi5HJFcJmw4FEE6ZbprhdHj-AO7DbHMrYFU7-W71DGXcr7KEPlUiaPGmZWc/s1600/Super-Computer.jpg" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="150" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAsaJvvxhAVZ0HQ5pmr8vowN44JqZzr26a8Nrljfdj40oZKnqmtQd8mayZQC3-Y6gyi4xEz74P9-BmfhK5pi5HJFcJmw4FEE6ZbprhdHj-AO7DbHMrYFU7-W71DGXcr7KEPlUiaPGmZWc/s200/Super-Computer.jpg" width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Super Computer</td></tr>
</tbody></table><ul style="text-align: left;"><li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Micro computer or Personal Computer (PC).</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Mini computer.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Mainframe computer.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="color: black; font-family: Arial;">Super computer.</span></span></li>
</ul><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span><br />
<span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span><span style="font-size: small;"><span style="color: black; font-family: Arial;"> </span></span> </div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-72136690636825682852011-11-06T08:45:00.000+05:302011-11-06T08:45:54.922+05:30List out some fields where you can use computers?<div dir="ltr" style="text-align: left;" trbidi="on"><br />
<div style="direction: ltr; line-height: 90%; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 6.72pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><b><span style="font-size: large;"><span style="color: black; font-family: Arial;">Use of computers in different fields:-</span></span></b></span></div><ol style="text-align: left;"><li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Education</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Banking</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Offices</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Ticket Reservations</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Airports/Railway Stations</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Voting</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Weather forecast</span></span></li>
<li><span style="font-size: small;"><span style="color: black; font-family: Arial;">Hospitals</span></span></li>
</ol></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-20104068758090356502011-11-06T08:42:00.000+05:302011-11-06T08:42:50.000+05:30What are the limitations of computer?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="color: black;"> </div><div style="color: black; direction: ltr; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span><span></span></span><span style="font-family: Arial; font-weight: bold;">Limitations of computer</span><span style="font-family: Arial;">:-</span></span></div><ol style="text-align: left;"><li><span style="font-size: small;"><span><span></span></span><span style="font-family: Arial;">They are less flexible than human.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="font-family: Arial;">They have to told what to do.</span></span></li>
<li><span style="font-size: small;"><span><span></span></span><span style="font-family: Arial;">They cannot perform anything outside the defined scope.</span></span></li>
</ol></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0tag:blogger.com,1999:blog-8846758764680996453.post-19163259668267795972011-11-06T08:37:00.000+05:302011-11-06T08:41:06.923+05:30What are the benefits of using a computer?<div dir="ltr" style="text-align: left;" trbidi="on"><div style="color: black;"><br />
</div><div style="color: black; direction: ltr; line-height: 90%; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"><span style="font-size: small;"><span style="font-family: Arial; font-weight: bold;">Benefits of using a computer</span><span style="font-family: Arial;">:-</span></span></div><div style="color: black; direction: ltr; line-height: 90%; margin-bottom: 0pt; margin-left: 0.38in; margin-top: 7.68pt; text-align: left; text-indent: -0.38in; unicode-bidi: embed; vertical-align: baseline;"></div><ol style="color: black; text-align: left;"><li><span style="font-size: small;"><span style="font-family: Arial; font-weight: bold;">Speed</span><span style="font-family: Arial;"> - Computer work at very high speed than human. </span></span></li>
<li><span style="font-size: small;"><span style="font-family: Arial; font-weight: bold;">Accuracy </span><span style="font-family: Arial;">- Computers rarely makes mistakes.</span></span></li>
<li><span style="font-size: small;"><span style="font-family: Arial; font-weight: bold;">Diligence</span> - Unlike humans, Computers simply do not get bored or tired. </span></li>
<li><span style="font-size: small;"><span style="font-family: Arial; font-weight: bold;">Storage</span><span style="font-family: Arial;"> - A computer can store a large amount of data.</span><span style="font-family: Arial; font-weight: bold;"> </span></span></li>
</ol></div>Anonymoushttp://www.blogger.com/profile/02746658019928608916noreply@blogger.com0