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Mainframe computer - Wikipedia, the free encyclopedia
Mainframes (often colloquially referred to as Big Iron ) are computers used mainly by large organizations for critical applications, typically bulk data processing such as census ...
Mainframe
history of computing. Mainframe Introduction. this page will be continuously updated last update: 19-nov-07
Mainframe Computers (210) 614-MAIN - San Antonio Computers 8236 ...
Welcome to Mainframe Computers, San Antonio's best one-stop computer repair facility. Not only can we fix up your old junker, but we can custom build a brand spankin' new one just ...

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Mainframe Computer, a high-level computer designed for the most intensive computational tasks. Mainframe computers are often shared by multiple users connected to the computer via terminals. The most powerful mainframes, called supercomputers, perform highly complex and time-consuming computations and are used heavily in both pure and applied research by scientists, large businesses, and the military. See also Computer; Microcomputer; Minicomputer; Time-Sharing.