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analog computer

A device that processes infinitely varying signals, such as voltage or frequencies. A thermometer is a simple analog computer. As the temperature varies, the mercury moves correspondingly. Although special-purpose, complex analog computers are built, almost all computers are digital. Digital methods provide programming flexibility. See digital computer.



digital computer

A computer that accepts and processes data that has been converted into binary numbers. Most computers are digital. Contrast with analog computer.



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analog channelAnalog HD
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