Telecommunication
Telecommunication
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Copy of Alexander Graham Bell's original telephone, at the Musée des Arts et Métiers in ParisTelecommunication is the assisted transmission of signals over a distance for the purpose of communication. In earlier times, this may have involved the use of smoke signals, drums, semaphore, flags or heliograph. In modern times, telecommunication typically involves the use of electronic transmitters such as the telephone, television, radio or computer. Early inventors in the field of telecommunication include Alexander Graham Bell, Guglielmo Marconi and John Logie Baird. Telecommunication is an important part of the world economy and the telecommunication industry's contribution was estimated to be $1.2 trillion in 2006.
Contents [hide]
1 Key concepts
1.1 Basic elements
1.2 Analogue or digital
1.3 Networks
1.4 Channels
2 Society and telecommunication
3 Altering of Space and Time
3.1 Economics
3.1.1 Microeconomics
3.1.2 Macroeconomics
3.2 Social
3.2.1 Cellular Telephone Industry
3.3 Sovereignty
3.3.1 Canadian Telecommunications Act
3.3.2 Canadian Broadcasting Act
4 History
4.1 Early telecommunications
4.2 Telegraph and telephone
4.3 Radio and television
4.4 Computer networks and the Internet
5 Modern operation
5.1 Telephone
5.2 Radio and television
5.3 The Internet
5.4 Local area networks
6 Telecommunication by region
7 See also
8 References
9 External links
[edit] Key concepts
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 the Latin communicare, meaning 'to share'.[1] The French word télécommunication was coined in 1904 by French engineer and novelist Édouard Estaunié.[2]
When...
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