Principle of locality is used in ______.

The Principle of Locality (or Locality of Reference) is the tendency of a processor to access the same set of memory locations repetitively over a short period of time. This principle is the fundamental reason why Cache Memory works effectively.

There are two main types:

1. Temporal Locality: If a memory location is accessed once, it is likely to be accessed again soon (e.g., loops).

2. Spatial Locality: If a memory location is accessed, nearby memory locations are likely to be accessed soon (e.g., arrays).