Mainframe Computers Mainframe computer is defined by Webster dictionary, as a computer with it's cabinet and internal circuits; also: a large fast computer that can handle multiple tasks concurrently.1 The second definition is probably more accurately because in the 1940s, there were a half-dozen computers, designed in clumsy ways, using expensive (vacuum tube) components, consuming vast amounts of power, which would take up large amounts of floor space. No one in those days thought that …showed first 75 words of 2471 total…

…showed last 75 words of 2471 total…Year; Time; January 3, 1983 Mandell, Steven; Dr. Mandell's Ultimate Personal Computer Desk Reference; Rawhide Press; 1993 Moreau, Rene; The Computer Comes of Age; The MIT Press; 1986 Polsson, Ken; Chronology of Events in the History of Microcomputers Ralston, Anthony and Edwin Reilly; Encyclopedia of Computer Science; Third Edition; Van Nostrand Reinhold; 1993 Smarte, Gene and Andrew Reinhardt; 15 Years of Bits, Bytes, and Other Great Moments; Byte; September, 1990 Smith, Douglas and Robert Alexander; Fumbling the Future; William Morrow and Company; 1988