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A device, usually electronic, that processes data according to a set of instructions. The digital computer stores data in discrete units and performs arithmetical and logical operations at very high speed. -
A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. -
Is a system used to send speech or data over distances using a device called a telephone that functions as the transmitter and receiver. -
Is sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. -
An electronic system of transmitting transient images of fixed or moving objects together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound. -
Is a wireless, portable personal computer with a touchscreen interface. -
Portable device for connecting to a telecommunications network in order to transmit and receive voice, video, or other data.