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Lauren H


Date added:

April 26, 2015








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9 / 2488


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This is called demodulation. A modem is fed digital information, in the form of ones and zeros, from the CPU. The modem then analyzes this information and converts it to analog signals, that can be sent over a phone line. Another modem then receives these signals, converts them back into digital data, and sends the data to the receiving CPU...
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At connection time, modems send tones to each other to negotiate the fastest mutually supported modulation method that will work over whatever quality line has been established for that call. There are two main differences in the types of modems for PC, internal and external modems. Evolution of Modems In the last 10 years, modem users have gone from data transfer rates of 300bps to 1,200 bps to 2,400 bps to 9,600 bps to 14...
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