MODEM

Digital Communication: Modem



Digital Communication: Modem

Modem is an electronic device which is short form of modulator-demodulator and is used for transmission of data packets over the cable or phone line via computer system. Modem can either be employed as external or internal device. Modem works on the principle of signal conversion that is used as an interface to digital device to analog channels or circuits. An incoming digital signal or series of signals are accepted by the transmitting modem which modulates these signals which is basically the combination of low frequency digital signal to be transmitted with the high frequency analog ...