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Telecommunication

""Telecom-icon.svg

"Telecommunications refers to wave-based communication technology through media such as air, cables etc. Telecommunication is the "transmission of "information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as "beacons, "smoke signals, "semaphore telegraphs, "signal flags, and optical "heliographs, or audio messages via coded drumbeats, lung-blown horns, or sent by loud whistles, for example. In the modern age of electricity and electronics, telecommunications now also includes the use of electrical devices such as "telegraphs, telephones, and "teleprinters, the use of radio and "microwave communications, as well as "fiber optics and their associated electronics, plus the use of "orbiting satellites and the Internet.

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"Telecommunication is the "transmission of "signals over a distance for the purpose of "communication. In modern times, this process typically involves the sending of "electromagnetic waves by electronic transmitters, but in earlier times telecommunication may have involved the use of "smoke signals, "drums or "semaphore lines. 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 that connect these devices, including "computer networks, "public telephone networks, "radio networks and "television networks. Computer communication across the "Internet is one of many examples of telecommunication.

Telecommunication systems are generally designed by telecommunication engineers. Early inventors in the field include "Alexander Graham Bell, "Guglielmo Marconi and "John Logie Baird. Telecommunication is an important part of the world economy with the telecommunication industry's revenue being placed at just under 3 percent of the "gross world product.

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""Samsung Galaxy Note
Credit: "Pangkakit

Smartphones (or smart phones) are "mobile phones with an advanced "mobile operating system.

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In the news

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Telecommunications News from Wikinews


March 3, 2011: Telecom Commission of Solomon Islands issues phone company US$1M fine
February 22, 2011: Libya blocks access to Internet
September 1, 2010: Telstra becomes the first in the world to switch to HSPA+ wireless Internet technology

Selected biography

""Alexander Graham Bell.jpg

"Alexander Graham Bell ( March 3,1847 – August 2, 1922 ) was an outstanding "scientist, "inventor, and innovator. Born and brought up in "Scotland, he emigrated to "Canada, and later, the "United States. Over the years, his work and efforts were expressed between both countries. Bell is widely acclaimed as the prime developer of the "telephone, with considerable honourable mention to "Antonio Meucci and "Philipp Reis. In addition to Bell's work in "telecommunications, he was responsible for important advances in "aviation and "hydrofoil technology.

Did you know?

...that "Intelsat 1, known as Early Bird, launched in 1965, provided either 240 voice circuits or one two-way television channel between the United States and Europe.

...that the first telephone message was transmitted in 1876 from one room in "Alexander Graham Bell’s house to another.

...that in 1880 France rewarded Bell the "Volta Prize, worth 50,000 francs, for his invention.

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