A modulator-demodulator, commonly referred to as a modem, is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone … See more

Modems are frequently classified by the maximum amount of data they can send in a given unit of time, usually expressed in bits per second (symbol bit/s, sometimes abbreviated "bps") or rarely in bytes per second (symbol … See more

Modems grew out of the need to connect teleprinters over ordinary phone lines instead of the more expensive leased lines which had previously been used for current loop–based teleprinters and automated telegraphs. … See more

A dial-up modem transmits computer data over an ordinary switched telephone line that has not been designed for data use. It was once a widely known technology, mass-marketed globally dial-up internet access. In the 1990s, t… See more