Computer Memory:

A device or medium that can accept data, hold them, and deliver them on demand at a later time called Memory.

Two Types of Storage: --

Ø  Primary storage.

ü  Used to hold running program instructions.

ü  Used to hold data, intermediate results, and results of ongoing processing of job(s)

ü  Fast in operation.

ü  Small Capacity

ü  Expensive.

ü  Volatile (looses data on power dissipation).

Ø  Secondary storage:

ü  Used to hold stored program instructions.

ü  Used to hold data and information of stored jobs.

ü  Slower than primary storage.

ü  Large Capacity.

ü  Lot cheaper than primary storage.

ü  Retains data even without power