cyclebabble

(jargon)Advertising raw clock speed, instead of bus speed.

IBM uses raw clock speed as the speed of the computer. Inthe IBM PC and IBM PC XT, the clock is divided by 4 toproduce the 4-phase bus clocks. Thus a 4 MHz IBM XT reallyruns at 0.895 MHz, because that 4 MHz was really 3.58 MHzwhich gets divided by four.

A Tandy Color Computer ran at exactly the same speed, butclock speed was specified as bus speed, 0.895 MHz, leaving theimpression that it was 4 times slower. Actually it ran alittle faster with a more efficient instruction set. If theactual clock rate had been specified on a CoCo 3, it wouldhave been 14.32 MHz, although the bus speed was still 0.895MHz. That high speed also generated video, color, and hidden refresh timing.

100 MHz computers are running at bus speeds of around 25 MHz.

单词	cyclebabble
释义	cyclebabble cyclebabble (jargon)Advertising raw clock speed, instead of bus speed. IBM uses raw clock speed as the speed of the computer. Inthe IBM PC and IBM PC XT, the clock is divided by 4 toproduce the 4-phase bus clocks. Thus a 4 MHz IBM XT reallyruns at 0.895 MHz, because that 4 MHz was really 3.58 MHzwhich gets divided by four. A Tandy Color Computer ran at exactly the same speed, butclock speed was specified as bus speed, 0.895 MHz, leaving theimpression that it was 4 times slower. Actually it ran alittle faster with a more efficient instruction set. If theactual clock rate had been specified on a CoCo 3, it wouldhave been 14.32 MHz, although the bus speed was still 0.895MHz. That high speed also generated video, color, and hidden refresh timing. 100 MHz computers are running at bus speeds of around 25 MHz.
随便看	oregon rural electric cooperative association oregon rural healthcare quality network oregon's oregons oregon school boards association oregon school for the blind oregon school for the deaf oregon school library information system oregon school nutrition association oregon school safety association oregon science fiction conventions inc oregon's euthanasia law oregon sheep dog society oregon short line railroad oregon society of anesthesiologists oregon society of association management oregon society of cardiovascular and pulmonary rehabilitation oregon society of health-system pharmacists oregon sports network oregon (state) oregon state agricultural college oregon state association of occupational health nurses oregon state association of plumbing, heating and cooling contractors oregon state bar oregon state beekeepers association