Modems

A modem converts a computer’s digital signals into the telephone’s analog signals. The word modem comes from the two steps in this process: “mo dulation” and “dem odulation”. Digital data from a computer is fed to a modem which converts data into an analog signal. Another modem converts these signals back into the original digital signal. Data can transmit at the rate of several thousand bits per second over ordinary telephone lines and at even higher rates over “shielded” lines. Modems operate in full or half duplex mode, depending on whether they send data together or one at a time. Below are articles on computer modems, communication hardware and modem reviews.