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A memory bank is the logical storage within computer memory that is used for storing and retrieving frequently used data. It can be a part of standard RAM or the cache memory used for easily accessing and retrieving program and standard data.
A memory bank is primarily used for storing cached data, or data that helps a computer access data much more quickly than standard memory locations. Typically, a memory bank is created and organized by the memory access controller and the actual physical architecture of the memory module. In SDRAM and DDR RAM, the memory bank can consist of multiple columns and rows of storage units spread across several chips. Each memory module can have two or more memory banks for program and data storage.