(80) Ram

 Ram

Ø  Ram stands for random access memory. It is main memory and temporarily read and writes memory of a computer. The desire data which is processed and available in the main memory for the user. It is divided into two parts.

1.   Static ram.

Ø It is written stored information only as long as the power supply is on.

Ø It has a very high speed.

Ø It is expensive.

Ø It consumes more power.

2.   dynamic ram-

Ø Dynamic ram losses it stored information is very short time (a few millisecond) even through the power supply is on.

Ø It is cheaper.

It consumes less power