AskDefine | Define mainframe

Dictionary Definition



1 a large digital computer serving 100-400 users and occupying a special air-conditioned room [syn: mainframe computer]
2 (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 [syn: central processing unit, CPU, C.P.U., central processor, processor]

User Contributed Dictionary



  1. A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex organizations (such as banks and supermarkets) where continuously sustained operation is vital

Extensive Definition

Mainframe may refer to one of the following:
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