This unit can store instructions, data and intermediate results. This unit supplies information to the other units of the computer when needed. It is also known as internal storage unit or main memory or primary storage or Random access memory(RAM).
Its size affects speed, power and capability. Primary memory and secondary memory are two types of memories in the computer. Functions of memory unit are:
● It stores all the data and the instructions required for processing.
● It stores intermediate results of processing.
● It stores final results of processing before these results are released to an output device.
● All inputs and outputs are transmitted through main memory.