What is Cache memory, with an example.

Cache memory

Cache memory is used between faster and slower devices to let them work more quickly together. The fast device writes or reads to/from the cache memory and the slower device updates as quickly as it can.
For example, the processor has cache memory to speed up access to the slower RAM, which means that the processor isn’t idle while It waits for the RAM to respond to an instruction. Also, slower hard disks have a cache memory to speed up disk accesss between the RAM and a hard disk.

Powerful microprocessors generate lots of heat. Without a heat sing the fan heat dispersal system to cool them down they would quickly burn out.


The Power supply unit (PSU) must produce enough power (watts) for all the components in the computer.

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