Question

Consider that cache memory consists of 128 blocks of 16 words each
and main memory consists of 4096 blocks of 16 words. Calculate the
number of bits needed for addressing cache and main memory. Apply
the mapping techniques to associate a Block J out of 4096 blocks in
main memory with 128 blocks of
cache

Answer 1

Answer:

Cache Memory is a special very high-speed memory. It is used to speed up and synchronizing with high-speed CPU. Cache memory is costlier than main memory or disk memory but economical than CPU registers. Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed.

Cache memory is used to reduce the average time to access data from the Main memory. The cache is a smaller and faster memory which stores copies of the data from frequently used main memory locations. There are various different independent caches in a CPU, which store instructions and data.