Question

What is cache memory??

Answer 1

It is at the top level of memory hierarchy this is a highest speed memory
used to increase the speed of processing by making current programs and data available to the CPU at the Rapid rate

cache memory is usually placed between the CPU and the main memory

Answer 2

-: Cache Memory :-

Cache memory is a very high speed semiconductor memory, which can speed up CPU. It acts as a buffer between the CPU and main memory.

It is used to hold those parts of data and program which are most frequently used by CPU. The parts of data and programs are transferred from disk to cache memory by operating system, from where CPU can access them.

Advantage : -

• Cache memory is faster than main memory.

• It consumes less access time as compared to main memory.

• It stores the program that can be executed within a short period of time.

•It stores data for temporary use.

Disadvantage : -

• Cache memory has limited capacity.

• It is very expensive

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