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Period: Jan 1, 1400 to
History of communications
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Jan 1, 1450
Printing Press
google,invention of the printing pressInvented by Johann Gutenburg.In 1450.To improve the production rate of books,and cut the cost of labor.They carved letters on a wooden block and covered it with ink,and applied it to a blank piece of paper. -
Typewriter Idea
The concept was firstmade in 1714 by Henry Mill.Who patent the idea of an artificial machine that could impress letters on paper. -
Typewriter
googleThe first typewriter was built by an Italian Pellegrino Turri in 1808 for his blind friend Countess Carolina Fantoni da Fivizzano.Then numerous inventors in Europe and in the U.S. worked on making them. -
Telegraph
googleInvented in 1832,by Samuel Morse,and Joseph Henry.Used to send information to somebody else.It works by sending electronic pulses through a line or radio,and Samuel Morse helped invent Morse code. -
Telephone
googleIn 1874,Bell used it to teach his deaf students to listento sound vibrations.Then 2 years later he remade it for everyone to use.By using a tin mouth piece to focus sound waves. -
Radio
googleThe radio was invented by Gugliemo Marconi in 1921.He used wireless telegragh transmitted only signals.Vioce over the air,as we know radio today. -
UNIVAC Computer
googleOn June 14,1951.The first computer was made by J. Presper Ecket and John Maulchy,and was designed for commercial use.They ended up making 90,000 transctions per month. -
Internet
googleIn 1950's the Advanced Research Projects Agency (ARPA) created it to survive a nuclear attack.Then in 1972 it was conected to computers nation wide for commercial use,but it was only conected to about two dozen sites.
