CPU Cache

[NewbieBuilder]

Well, I know what cache is, just to get that out of the way. But, I don't know how a CPU uses cache, care to explain?

[[I.R.A]_FBi]

A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations.

read the rest here (http://en.wikipedia.org/wiki/CPU_cache)

[KennyT772]

Think a very small amount of very very fast memory right on the cpu die.

[pbmaster]

So does it only store instructions or can it help with other stuff too?

[Polaris573]

It stores a copy of data from the most frequently used memory locations. So it stores other stuff too.