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Last week, IBM said it had made a computer chip with a clock rate of 1100
megahertz, the first chip to break the 1000-megahertz barrier and operate at
nearly twice the speed of any commercial chip. The computer company Digital also
plans to sell 1000-megahertz chips by 2000. However, IBM has said nothing about
its plans to market the chips and Digital has not yet said whether it has made a
1000-megahertz chip.