Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electrical or electronic means, typically through cables, radio waves, or other communication technologies.
Examples include wired phones, cellphones, microwave communications, fiber optics, satellites, radio and television broadcasting, the internet and telegraphs. A complete, single telecommunications circuit consists of two stations, each equipped with a transmitter and a receiver.
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telecommunication, science and practice of transmitting information by electromagnetic means. Modern telecommunication centres on the problems involved in transmitting large volumes of information over long distances without damaging loss due to noise and interference.