Telecommunication is that the exchange of signs, signals, messages, words, writings, pictures and sounds or data of any nature by wire, radio, optical or different magnetism systems.[1][2] Telecommunication happens once the exchange of data between communication participants includes the utilization of technology. it's transmitted through a transmission medium, like over physical media, as an example, over line, or via radiation through house like radio or light-weight.[3][4][5][6][7][8] Such transmission methods square measure typically divided into communication channels that afford the benefits of multiplexing. Since the Latin term communicatio is taken into account the human process of data exchange, the term telecommunications is commonly utilized in its descriptor as a result of it involves many alternative technologies.[9] Early suggests that of human activity over a distance enclosed visual signals, like beacons, smoke signals, semaphore telegraphs, signal flags and optical heliographs.[10] different samples of pre-modern long-distance communication enclosed audio messages like coded drumbeats, lung-blown horns, and loud whistles. 20th- and 21st-century technologies for long-distance communication typically involve electrical and magnetism technologies, like telegraph, telephone, tv and telex machine, networks, radio, microwave transmission, glass fibre, and communications satellites. A revolution in wireless communication began within the initial decade of the twentieth century with the pioneering developments in radio communications by Marconi, United Nations agency won the award in Physics in 1909, and different notable pioneering inventors and developers within the field of electrical and electronic telecommunications.

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