Giga meaning

One billion (109 ).

Gigahertz.

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1,073,741,824 (230 ).

Gigabyte.

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One billion; the factor 109

Gigaton.

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A prefix that means.
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One billion (109 ), as in gigahertz, one billion hertz.
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230 (that is, 1,073,741,824), which is the power of 2 closest to a billion, as in gigabyte.
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(1) Billion (10 to the 9th power). Abbreviated "G," it is a prefix for capacities and speeds (gigabits, gigabytes, gigahertz, etc.). Giga may refer to 1,000,000,000 or 1,073,741,824, the latter based on the binary system (see NIST binary). See GB, gig, binary values and space/time.
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See G.
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(computing) Multiplying the unit to which it is attached by 230 or 1,073,741,824
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In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 109. Symbol: G.
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Origin of giga

  • < Gr gigas, giant
    From Webster's New World College Dictionary, 5th Edition
  • From Greek gigās giant
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Ancient Greek γίγας (gigas, “giant”); cognate to giant.
    From Wiktionary