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[kil-uh-bahyt] /ˈkɪl əˌbaɪt/
noun, Computers.
1024 (2 10) bytes.
(loosely) 1000 bytes. Symbol: K, KB.
Origin of kilobyte
1965-70; kilo- + byte Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for kilobyte
  • The cost of storing or transmitting a kilobyte of data really is now too cheap to meter.
  • There's only one catch: you don't get to use a computer or a single kilobyte of network bandwidth.
  • However, it can also be used on desktop systems to represent data at the kilobyte level.
British Dictionary definitions for kilobyte


(computing) 1024 bytes Abbreviation KB, kbyte See also kilo- (sense 2)
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 kilobyte

1970, from kilo- + byte.

Online Etymology Dictionary, © 2010 Douglas Harper
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kilobyte in Science
  1. A unit of computer memory or data storage capacity equal to 1,024 (that is, 210) bytes.

  2. One thousand bytes. See Note at megabyte.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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kilobyte in Technology

(KB) 2^10 = 1024 bytes.
See prefix.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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