modem

/ˈməʊdəm/noun

A device that converts computer data into signals that can travel over a telephone line, and back again, so computers can connect to each other.

Example sentence

“Try restarting the modem if your internet connection drops.”

Short for modulator-demodulator. Nowadays often combined with a router in a single box.

Related words

adapterA device that lets two pieces of equipment work together when they would not otherwise connect.consoleA control panel with displays and input controls used to operate and monitor an electronic system.antennaA device that sends or receives radio and other electromagnetic signals, converting them to or from electrical form.controllerA person or device that directs or manages something.satelliteA machine sent into orbit around the Earth or another body in space, usually to send back signals or data.joystickA control device with an upright handle on a base, often fitted with buttons, used to steer aircraft, play video games, or operate machinery.