Memory
Hierarchy:
Memory hierarchy is to obtain the highest possible access
speed while minimizing the total cost of the memory system.
The memory unit that directly communicate with cup is
called the main memory.
Devices that provide the backup storage are called
auxiliary memory.
A special high speed memory called is used to increase
the speed of processing by making current program and available to the cpu at
rapid rate.
The Memory hierarchy system consists of all storage
devices employed in a computer system from slow but high capacity auxiliary
memory to relatively fasted cache memory a possible to high sped processing
logic. As we go down in the hierarchy.
Cost per bit decrease
Capacity of memory increase
Access time increase
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