Cache

→ The principle of Locality of reference justifies the use of cache memory. The principle of locality, is the tendency of a processor to access the same set of memory locations repetitively over a short period of time.
→ Locality is merely one type of predictable behavior that occurs in computer systems. Systems that exhibit strong locality of reference are great candidates for performance optimization
through the use of techniques such as the caching, prefetching for memory and advanced branch predictors at the pipelining stage of a processor core.