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Telecommunication is the transmission of signals over a distance for the purpose of communication. Today this process almost always involves the sending of electromagnetic waves by electronic transmitters but in earlier years it may have involved the use of smoke signals, drums or semaphores. 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 is also a vast array of networks that connect these devices, including computer networks, public telephone networks, radio networks and television networks. Computer communication across the Internet, such as e-mail and internet faxing, is just one of many examples of telecommunication.

Technical foundations


Etymology
The word telecommunication was adapted from the French word télécommunication. It is a compound of the Greek prefix tele- (τηλε-), meaning 'far off', and communication, meaning 'exchange of information'.Telecommunication, tele- and communication, New Oxford American Dictionary (2nd edition), 2005.

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The Economist: Telecommunications

Down the line
Mon, 21 Apr 2008 08:58:26 -0000
International phone-call pricesTHE COST of a phone call abroad has dropped dramatically in the past three decades, thanks to market liberalisation and advances in technology. A one-minute fixed-line call from America has fallen by 98.4% in real terms since 1973. Customers in Japan still have reason to grumble. Although the exorbitant cost of an international call from the country has plummeted since the early 1970s, it is still around nine times pricier for a cross-border natter in Japan than in America. ...

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Telecommunications related videos

A Closer Look At The iPhone:

Apple Inc's Phil Schiller shows John Blackstone the many features of the iPhone. Apple's latest product will go on sale this June.

 

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