What role does memory play in the functioning of computer system ?

The memory of a computer is more like a predefined working place, where it temporarily keeps information and data to facilitate its performance. When the task is performed, it clears its memory and memory space is then available for the next task to be performed.

There are two types of main memory:

1. Random Access Memory
2. Read Only Memory

Since computer's main memory is temporary, secondary memory space, such as hard disk, CDs, pen drive etc., is needed to store data and information permanently for later use.