Cache Memory is a type of memory that is very fast but but relatively smaller in size as compared to main memory.... It is the memory used to store frequently accessed data needed by the CPU....
They are usually 8 - 512 bytes. Within these memories there is an in index number used to refer to that specific
location in memory called an address. Main memory has similar formats and by virtue of these addresses and indexes you can copy data to and from main memory where you can swap values. The Can do the same.
for more information visit :::::: http://en.wikipedia.org/wiki/CPU_cache
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