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History of Telecommunications | Kids Work!

Telecommunications is the word we use for the science and technology of sending messages using electricity. This includes the telegraph, telephone, radio, television, and computers. These instruments change information into signals that are sent over long distances, through wires, or through optical fibers, or by radio waves, or satellite. The information can be almost anything--voices, music, pictures, words, or computer data and it arrives almost immediately.

Anthropologists believe that until about 40,000 years ago humans were unable to speak as we do today. People communicated by grunting and gesturing, possibly imitating sounds found in nature. Early humans also painted and drew pictures of things they saw to tell stories.

Thousands of years after language developed, evidence of early writing appears. People living in the ancient Near East wrote using symbols or pictographs and later developed alphabets. They could now document their histories and pass on news and information.

Imagine living before the invention of electronic communication. You would be living without telephones, radio, television and computers. Most of our entertainment depends upon telecommunications. Yes, that’s right, if you lived two hundred years ago, before telecommunications, you would receive messages as handwritten letters delivered by people on foot or on horseback. You would be living without television, the world’s most popular form of entertainment. 

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Kids Work! / Television Station / History of Television

Telegraph and Telephone | Kids Work!

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Telegraph and Telephone | Kids Work!
Episode 2
PICTURED ABOVE: Alexander Graham Bell, Inventor of the telephone The first reliable electronic telegraph machines were built in the 1830s when an American named Samuel Morse developed a telegraph...
History of Radio | Kids Work!

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History of Radio | Kids Work!
Episode 3
The next advancement in telecommunications was radio, the first wireless mode of communication. Radios send messages by radio waves instead of wires. German scientist Heinrich Hertz proved the...
Television Invention | Kids Work!

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Television Invention | Kids Work!
Episode 4
Television is a way of sending and receiving moving images and sounds over wires or through the air by electrical impulses. The big breakthrough in technology was the ability to send sound and...
Broadcast Television | Kids Work!

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Broadcast Television | Kids Work!
Episode 5
The first American television broadcast was exhibited at the 1939 World’s Fair in New York City. The fair’s theme was “Worlds of Tomorrow” and RCA set up twelve televisions, which broadcast events...
Digital Television | Kids Work!

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Digital Television | Kids Work!
Episode 6
We have come a long way and now, “The sky’s the limit.” We have regular television, known as terrestrial (land), cable which brings signals through underground cable, microwave signal transmission...