Describe the memory units for memory measurement?

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Memory Unit:- The smallest element of data is called binary digit. Its also called BITS.

The BIT can have a value of 0 (OFF) and 1 (ON).

 

Memory Unit

•1 Byte  8 Bits

•1 Kilo Byte  1024 Bytes

•1 Mega Byte  1024  KB

•1 Gega Byte  1024 MB

•1 Tera Byte  1024 GB

•1 Peta Byte  1024 TB

 

What is Memory? How many types of memory we use in a computer? Describe.

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Memory: Memory is something which a computer need for data processing as well as future references.

Computer Memory - RAM

There are two types of memory:

1. Primary Memory

2. Secondary Memory

Primary Memory

• Its stores all the data temporarily. If computer gets shutdown, all the data get lost.

• It is also called volatile memory.

• Example: RAM, ROM.

• RAM :- Random Access Memory.

• ROM :- Read Only Memory.

 

 Secondary Memory  

• Its stores all the data permanently. It is also called versatile memory.

• Example: Hard Disk, Floppy Disk, CD, DVD.