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gigabyte

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The definition of a gigabyte is a unit of storage capacity for computer data and memory equal to about one billion bytes.

(noun)

An example of a gigabyte is about 200 songs stored on an mp3 player.

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See gigabyte in Webster's New World College Dictionary

noun

a unit of storage capacity in a computer system, equal to 1,073,741,824 (2) bytes
loosely one billion bytes

Origin: giga- + byte

See gigabyte in American Heritage Dictionary 4

noun

A unit of computer memory or data storage capacity equal to 1,024 megabytes (2³⁰ bytes).
One billion bytes.

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