Computer Networking
Demodulation is a process of

converting digital to analog signals
performing data description.
converting analog to digital signals
multiplexing various signals into one high speed line signals

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Computer Networking
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?

Paperless office
Global network
Electronic mail
None of these
Electronic newspaper

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