What really matters is how much work a chip can accomplish, a figure measured by the number of instructions executed per clock cycle.

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Things like the number of computer instructions per clock cycle, the bandwidth of the RAM bus, and the overall efficiency of the architecture are at least as important as the raw clock speed at which a processor runs.

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Thomas Baird, of Select Surveyors in Glasgow, said the number of Home Report instructions it had received had remained steady.

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Calculating the addition of the number 2 to a variable, for example, can generate 27 instructions in machine code, many of them repetitive.

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One popular objection says that the IRS violates the Paperwork Reduction Act of 1980 by failing to put a required Office of Management and Budget control number on form instructions.

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All of the materials needed for each experiment are included, along with a lesson plan, instructions and "factoid" cards with tidbits of interesting trivia, such as the number of elements on the periodic scale.

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