The gigahertz chip measures the computer processor's performance
in speed. Processors with a higher gigahertz speed can do more in a
given unit of time than processors with a lower gigahertz
speed.
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One terahertz is one thousand gigahertz.
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1,000,000,000 Hertz=1 Gigahertz
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One gigahertz means a frequency of a billion times per
second.