modem(redirected from TXD)
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a hardware device that converts digital signals from a computer or computer terminal to and from analog signals for transmission along communication lines.
abbreviation for modulate/demodulate. It is a device for transforming serial binary numbers into an audible tone, and vice versa, for transmission over a telephone line to another computer.
A device that converts digital data into analogue data for transmission by telephone via copper cable lines.
modemModulator/demodulator Online An acoustic coupling device that converts a computer's digital signals to analog signals, allowing transmission of data through standard telephone lines. See Cable modem, Codec.
n (modulator/demodulator), a device that converts data from a form compatible with computer manipulation to a form compatible with transmission equipment and vice versa.