An area of memory that stores data or instructions for faster computer performance.

When data is cached it is usually stored in RAM memory to be accessed at a later time. These are instructions or data that was previously accessed and is now stored for ease of use later.If the data is later requested the cache can then serve this information again at a much faster speed by simply reading the information stored in the cache area. This access is much faster than if the data had to be recomputed or fetched from its original storage location.