cache computer definition
cache-Computer Definition. To store data in a faster storage system or a storage system closer to the usage of the data. Processor caches store data from (slower) main memory on special chip cache memory, where it can be accessed and reused much more efficiently. disk cache is a section of main memory or memory in the disk controller that bridges the disk and CPU. When the disk is read, a larger block of data is copied into the cache than is immediately required.