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checkpoint

[chek-point] /ˈtʃɛkˌpɔɪnt/
noun
1.
a place along a road, border, etc., where travelers are stopped for inspection.
2.
a point or item, especially in a procedure, for notation, inspection, or confirmation.
Origin of checkpoint
1935-1940
1935-40; check1 + point
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for checkpoint

checkpoint

/ˈtʃɛkˌpɔɪnt/
noun
1.
a place, as at a frontier or in a motor rally, where vehicles or travellers are stopped for official identification, inspection, etc
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 checkpoint
n.

1940, from check (v.) + point (n.). Originally an aviator's term for landforms or structures of known height against which the craft's altitude could be visually checked. The "vehicle stop" sense is recorded from 1950.

Online Etymology Dictionary, © 2010 Douglas Harper
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checkpoint in Technology
programming
Saving the current state of a program and its data, including intermediate results, to disk or other non-volatile storage, so that if interrupted the program could be restarted at the point at which the last checkpoint occurred.
This facility came into popular use in mainframe operating systemss such as OS/360 in which programs frequently ran for longer than the mean time between system failures. If a program run fails because of some event beyond the program's control (e.g. hardware or operating system failure) then the processor time invested before the checkpoint will not have been wasted.
(1995-02-07)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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