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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