Cabinet

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A cabinet, in older DEC and other computers, is a metal enclosure (often, but not always, in the form of an industry-standard-sized 19" wide rack) which is designed to hold either one or more mounting boxes, or a backplane (holding a number of printed circuit boards) and peripherals (usually physically smaller disk and magnetic tape drives). The cabinet often includes a power supply, although those are sometimes mounted externally to the cabinet.