Write short notes on cache memory

The Cache Memory (Pronounced as "cash") is the volatile computer memory which is very nearest to the CPU so also called CPU memory, all the Recent Instructions are Stored into the Cache Memory. It is the fastest memory that provides high-speed data access to a computer microprocessor.

Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed. Cache memory is used to reduce the average time to access data from the Main memory.

Cache memory temporarily stores information, data and programs that are commonly used by the CPU. When data is required, the CPU will automatically turn to cache memory in search of faster data access. ... A cache hit enables the processor to retrieve data quickly, making your overall system more efficient.

There is three types of cache:

• direct-mapped cache;

• fully associative cache;

• N-way-set-associative cache.

you are welcome for my answer it is b⇔⇒⊕

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explanation:

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