Dictionary:Cache

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(kash) A temporary storage place. Computers include caches at several levels, including cache memory and disk cache. A cache memory may be on the same or a separate chip from the microprocessor, and is faster to access than regular RAM. Disk cache, either a reserved area of RAM or a special hard-disk cache, may store recently accessed data for fast access. RAM can be viewed as a cache. For example, recently requested Web pages may be stored in a browser’s cache so that the browser can return to a page from the cache rather than from the server.