Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or electromagnetic systems Telecommunication occurs when the exchange of informationbetween communication participants includes the use of technology. It is transmitted either electrically over physical media, such as cables, or via electromagnetic radiation.Such transmission paths are often divided into communication channels which afford the advantages of multiplexing. Since the Latin term communicatio is considered the social process of information exchange, the term telecommunications is often used in its plural form because it involves many different technologie