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mainframe

[meyn-freym] /ˈmeɪnˌfreɪm/
noun, Computers.
1.
a large computer, often the hub of a system serving many users.
Origin
1960-1965
1960-65; main1 + frame
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for main-frame

mainframe

/ˈmeɪnˌfreɪm/
noun
1.
  1. a high-speed general-purpose computer, usually with a large storage capacity
  2. (as modifier): mainframe systems
2.
the central processing unit of a computer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for main-frame

mainframe

n.

"central processor of a computer system," 1964, from main (adj.) + frame (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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main-frame in Science
mainframe
  (mān'frām')   
A large, often powerful computer, usually dedicated to lengthy, complex calculations or set up for use by many people simultaneously. Compare personal computer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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main-frame in Culture

mainframe definition


A large, powerful computer system. A mainframe computer typically carries out complex calculations and is shared by many users. (Compare personal computer.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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