Cache memory

What is cache memory?
Cache memory is a small type of volatile computer memory that provides high-speed data access to a processor and stores commonly used computer programs, applications, and data. It is the fastest memory in a computer and is usually built into the motherboard and embedded directly in the processor or main memory (RAM).

Cache memory provides faster data storage and access by storing instances of programs and data that the processor routinely accesses. Therefore, when a processor requests data that already has an instance in the cache memory, it does not have to go to main memory or the hard drive to get the data.

Cache memory can be primary or secondary cache memory, with the primary cache memory built directly into or closest to the processor. In addition to the hardware-based cache, the cache memory can also be a disk cache, with a reserved part on a disk storing and providing access to data / applications with frequent access from the disk.

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