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How-To Geek

Cache

In computer science, a cache is a hardware component that stores frequently used pieces of data for more rapid access. Modern CPUs, for example, have both instructional and data caches to increase the speed at which the processor can access instruction sets and data.

While a cache sounds similar to a buffer, they are fundamentally different in that a cache stores items for quick reference, and a buffer stores unique data for faster immediate access without interruption.

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