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Unformatted text preview: Fiber-optic cable is a third media type that contains one or more optical fiber elements insulated by a protective sleeve. It uses laser or LED lights to reflect particle of glass. Q.6 Clearly explain the differences among analog data, analog transmission, digital data, and digital transmission. The difference between analog data and analog transmission is that the analog data is the signal that gets transmitted through the old POTS system. In order for a computer to communicate using the POTS system the signal has to be converted to digital data. The conversion of the analog data to digital data is done by a modem. In order for a voice signal (analog data) to be transmitted over a digital network (digital transmission) the analog data has to be converted using a codec which converts the analog data to a digital transmission then converted back to an analog data (decode)....
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- Fall '12