Discussion
Which type of memory generally enables to enhance the performance of a CPU ?
Answer: C
Performance is enhanced by cache memory.
Cache is a small, very fast memory between the CPU and main memory. It holds copies of recently and frequently used instructions and data, so most memory accesses are served at cache speed, which cuts the average access time and keeps the CPU busy.
Auxiliary memory (disks) is far slower and used for bulk storage. Virtual memory enlarges the address space using disk, which adds overhead rather than speed. Associative memory is a technique for searching by content, used inside caches and TLBs, rather than the memory level that speeds up the CPU in general.
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