What Are The Functions Of The Primary Memory?

Primary memory is also known as main memory. The devices which are meant for keeping primary memory are responsible for holding instructions and data to provide the rapid access to central processing unit. The data and instructions are accessed from the primary memory in the same manner in all the devices, however, on the basis of the devices which hold the primary memory, it can be divided in various types.

The first type of primary memory is the random access memory and it is also known as RAM. It is the most fast memory device of the computer. Another type of memory is the cache memory, which is smaller but very fast memory. It is used to reduce the average time of the computer access memory. Third type of main memory is ROM which is known as read only memory. Last type of memory is  Programmable Read Only Memory (PROM) which is a form of digital memory.

Attention, encode and store