All the possibilities are managed by 600 2-gigahertz chips (from AMD) in ten servers.

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These leads will have to be sufficiently short to transmit very high frequency signals, which tend to radiate away as microwaves if the lead is too long (by 2015, chips will work high in the gigahertz band).

ECONOMIST: MONITOR

Now PC chips are running with clock speeds of 2 gigahertz, or 2 billion clock cycles a second.

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