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bank switching
bank switching
is a technique for overcoming the limitations of computers thatcan only address
a limited amount of immediate access storage. Several 'banks' of storage are
provided each one occupying the same place in the computer's memory map.
Only one bank may be active at any one time and the desired one is selected by
software. This technique is frequently used to provide a range of ROMbased
software within a microcoinputer such as a wordprocessor a spreadsheet and
a database any one of which may be used at a time. Software provided in this
way is sometimes known as sideways ROM.
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