This is an audio version of the Wikipedia Article:
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00:02:09 1 Etymology
00:03:08 2 History
00:03:17 2.1 Beacons and pigeons
00:05:03 2.2 Telegraph and telephone
00:06:37 2.3 Radio and television
00:08:46 2.4 Computers and the Internet
00:10:10 3 Key concepts
00:10:31 3.1 Basic elements
00:13:23 3.2 Analog versus digital communications
00:14:56 3.3 Telecommunication networks
00:16:00 3.4 Communication channels
00:19:37 3.5 Modulation
00:21:34 4 Society
00:22:09 4.1 Economic impact
00:22:18 4.1.1 Microeconomics
00:23:24 4.1.2 Macroeconomics
00:24:53 4.2 Social impact
00:26:40 4.3 Other impacts
00:27:50 5 Government
00:30:30 6 Modern media
00:30:39 6.1 Worldwide equipment sales
00:30:58 6.2 Telephone
00:35:23 6.3 Radio and television
00:40:07 6.4 Internet
00:46:25 6.5 Local area networks and wide area networks
00:49:56 7 Transmission capacity
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Speaking Rate: 0.9600438608856818
Voice name: en-GB-Wavenet-D
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
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Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or electromagnetic systems. Telecommunication occurs when the exchange of information between communication participants includes the use of technology. It is transmitted either electrically over physical media, such as cables, or via electromagnetic radiation. Such transmission paths are often divided into communication channels which afford the advantages of multiplexing. Since the Latin term communicatio is considered the social process of information exchange, the term telecommunications is often used in its plural form because it involves many different technologies.Early means of communicating over a distance included visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs. Other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, and loud whistles. 20th- and 21st-century technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, and teleprinter, networks, radio, microwave transmission, fiber optics, and communications satellites.
A revolution in wireless communication began in the first decade of the 20th century with the pioneering developments in radio communications by Guglielmo Marconi, who won the Nobel Prize in Physics in 1909, and other notable pioneering inventors and developers in the field of electrical and electronic telecommunications. These included Charles Wheatstone and Samuel Morse (inventors of the telegraph), Alexander Graham Bell (inventor of the telephone), Edwin Armstrong and Lee de Forest (inventors of radio), as well as Vladimir K. Zworykin, John Logie Baird and Philo Farnsworth (some of the inventors of television).
