[gig-uh-bahyt, jig-]

noun Computers.

a measure of storage capacity equal to 230 (1024) bytes.

Origin of gigabyte Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for gigabyte



computing one thousand and twenty-four megabytesSee also giga- (def. 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

Word Origin and History for gigabyte

1982, from giga- + byte.

Online Etymology Dictionary, © 2010 Douglas Harper

gigabyte in Science



A unit of computer memory or data storage capacity equal to 1,024 megabytes (230 bytes).
One billion bytes. See Note at megabyte.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.