communication and technology : through the years
DESCRIPTION
Communication and Technology : Through the Years. By: Echo Johnson. 1792. Mechanical Semaphore is invented in France. http://commons.wikimedia.org/wiki/Category:Mechanical_semaphores. 1822. Charles Babbage invents the first mechanical computer. - PowerPoint PPT PresentationTRANSCRIPT
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Communication and Technology :
Through the Years
By: Echo Johnson
![Page 2: Communication and Technology : Through the Years](https://reader035.vdocuments.mx/reader035/viewer/2022062410/568163f6550346895dd5864d/html5/thumbnails/2.jpg)
1792Mechanical
Semaphore is invented in
France.
http://commons.wikimedia.org/wiki/Category:Mechanical_semaphores
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1822Charles
Babbage invents the
first mechanical computer.http://trillian.randomstuff.org.uk/~stephen//history/timeline-MECH.html
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1829 William Austin Burt patents
the typographer.
http://www.adigitaldreamer.com/articles/what-is-typography.htm
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1837First practical
telegraph invented by Samuel F.B. Morse.http://inventors.about.com/od/tstartinventions/a/telegraph.htm
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1850English Channel
telegraph cable was first
being laid.http://www.cntr.salford.ac.uk/comms/transatlanticstory.php Real Picture!
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1924Pictures are
first transmitted
over telephone
lines.http://www.frontline.org.za/articles/MarvelsOfCreationAndScience.htm
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1972The first E-
Mail messages are sent.
http://www.internet-guide.co.uk/email.html
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1990Tim Berners-Lee invents the world wide web!
http://www.mit.edu/~rei/wwwintro.html
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1868The electric
voice machine was patented
by Thomas Edison.
http://invention.smithsonian.org/centerpieces/edison/000_story_02.asp
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1876Telephone
invented and demonstrated by Alexander
Graham Bell.http://inventors.about.com/od/bstartinventors/a/telephone.htm