• Cache memory speeds up data storage and access by storing instances of programmes and data that the CPU accesses frequently. As a result, when a processor requests data that already exists in the cache memory, it does not have to access the main memory or the hard disc.
• The quickest memory available is cache memory, which functions as a buffer between RAM and the CPU. Every time the processor wants to read or write a location, it checks whether a corresponding entry is accessible in the cache, minimising the time it takes to access data from the main memory.
• A physical component of the CPU, hardware cache is also known as processor cache. Primary or secondary cache memory can be primary or secondary cache memory, depending on how close it is to the CPU core. Primary cache memory is directly integrated into (or closest to) the processor.

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