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).

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

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The first Centrino-branded chips are expected to show up sometime before the summer and debut at clock speeds of about 1.6 gigahertz--considerably slower than Intel's flagship Pentium chips, which now top out at about 3 GHz.

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Its indium phosphide chips are already the world's fastest, with speeds of up to 150 gigahertz, or eight times that of similar silicon devices.

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