A cache is a hiding place for a group of things, such as provisions or treasures. In technology, a cache is a part of a computer's memory where information is kept. It helps to improve computer performance.
The first known use of the word "cache" was in France in 1797. It is derived from the French word "cacher," meaning "to hide." The word is most often used as a noun, but it may also be used as a verb. "Cached" or "caching" is used to describe the process of hiding or concealing something that is of importance.
The word "cache" may be confused with cash, meaning "ready money."