Communication and Technology :

Through the Years

By: Echo Johnson

1792Mechanical

Semaphore is invented in

France.

http://commons.wikimedia.org/wiki/Category:Mechanical_semaphores

1822Charles

Babbage invents the

first mechanical computer.http://trillian.randomstuff.org.uk/~stephen//history/timeline-MECH.html

1829 William Austin Burt patents

the typographer.

http://www.adigitaldreamer.com/articles/what-is-typography.htm

1837First practical

telegraph invented by Samuel F.B. Morse.http://inventors.about.com/od/tstartinventions/a/telegraph.htm

1850English Channel

telegraph cable was first

being laid.http://www.cntr.salford.ac.uk/comms/transatlanticstory.php Real Picture!

1924Pictures are

first transmitted

over telephone

lines.http://www.frontline.org.za/articles/MarvelsOfCreationAndScience.htm

1972The first E-

Mail messages are sent.

http://www.internet-guide.co.uk/email.html

1990Tim Berners-Lee invents the world wide web!

http://www.mit.edu/~rei/wwwintro.html

1868The electric

voice machine was patented

by Thomas Edison.

http://invention.smithsonian.org/centerpieces/edison/000_story_02.asp

1876Telephone

invented and demonstrated by Alexander

Graham Bell.http://inventors.about.com/od/bstartinventors/a/telephone.htm