The definition A relatively small amount (when compared to primary
memory) of very high speed RAM, which holds the instructions and
data from primary memory, that has a high probability of being
accessed during the currently executing portion of a program refers to
what category of computer memory?

A.
Secondary

B.
Virtual

C.
Real

D.
Cache

Explanation:
Cache logic attempts to predict which instructions and data in
main (primary) memory will be used by a currently executing
program. It then moves these items to the higher speed cache in
anticipation of the CPU requiring these programs and data. Properly
designed caches can significantly reduce the apparent main memory
access time and thus increase the speed of program execution.
* Answer secondary memory is a slower memory (such as a magnetic
disk) that provides non-volatile storage.
* Real or primary memory is directly addressable by the CPU and is used for the
storage of instructions and data associated with the program that is
being executed. This memory is usually high-speed, Random Access
Memory (RAM).
* Answer virtual memory uses secondary memory
in conjunction with primary memory to present the CPU with a
larger, apparent address space of the real memory locations.