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Dictionary definition for: Mainframe
1. (n) a large digital computer serving 100-400 users and occupying a special air-conditioned room
2. (n) (computer science) the part of a computer (a microprocessor chip) that does most of the data processing; the CPU and the memory form the central part of a computer to which the peripherals are attached
WordNet 2.1 Copyright Princeton University. All rights reserved.
