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Modem |
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A device, usually attached to a computer through a serial port or present as an internal card. A modem makes it possible to use ordinary phone lines to transfer computer data. In addition to a modem, a communications program is required. "Modem" is short for "modulator/demodulator"--the processes whereby a digital stream of data is converted to sound for transmission through a phone system originally designed only for sound (modulator) and the conversion of received sound signals back into digital data (demodulator). |
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