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Telecommunication Telecommunication is the transmission of signals over a distance for the purpose of communication. In modern times, this process of Telecommunication typically involves the sending of electromagnetic waves by electronic transmitters but in earlier years it may have involved the use of smoke signals, drums or semaphore. Today, telecommunication is widespread and devices that assist the process, such as the television, radio and telephone, are common in many parts of the world. There are also many networks operating that connect these devices, including computer networks, public telephone networks, radio networks and television networks. Computer communication across the Internet is just one of many examples of telecommunication. |
| Telecommunication systems are generally designed by telecommunication engineers. Early inventors in the field include Elisha Gray, Alexander Bell, Nicola Tesla, Guillermo Marconi and John Logier Baird. In recent times, optical fiber has radically improved the bandwidth available for intercontinental communication, helping to facilitate a faster and richer Internet experience and digital television has eliminated effects such as snowy pictures and ghosting. Telecommunication remains an important part of the world economy and the telecommunication industry's revenue has been placed at just under 3% of the gross world product. |