Introduction to modems

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Supporting Activity: Introduction to Modems

7 Write a 150- to 200-word response to the following

Digital communication has proved to be very efficient means of transporting speech, music, videos and data over different kinds of media. These media include satellite, microwave, fiber-optic, coaxial and cellular channels. One special advantage that digital communication holds over analog communication is the superior handling of noise in the channel.

8 Write a 150- to 200-word response to the following

A modem is a device that converts signals the computer understands into signals that can be accurately transmitted over the phone to another modem, which converts the signals back into their original form. Computers use modems to talk to each other. A Modem is a combination of modulator- demodulator. A typical telephone modem makes use of an ADC to convert the incoming audio from a twisted-pair line into signals the computer can understand. In a digital signal processing system, an ADC is required if the signal input is analog.

Reference no: EM13764799

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