Information about telecommunications
Telecommunication (from Latin communicatio, referring to the social process of information exchange, and the Greek prefix tele-, meaning distance) is the transmission of information by various types of technologies over wire, radio, optical or other electromagnetic systems
Telecommunication (from Latin communicatio, referring to the social process of information exchange, and the Greek prefix tele-, meaning distance) is the transmission of information by various types of technologies over wire, radio, optical or other electromagnetic systems.[1][2] It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field.
The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. Telecommunication is often used in its plural form, because it involves many different technologies.[3]
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