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Joseph Henry invents the first electric telegraph.
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Samuel Morse invents Morse code.
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Samuel Morse invents the first long distance electric telegraph line.
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Alexander Graham Bell patents the electric telephone.
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Almon Strowger patents the direct dial telephone or automatic telephone exchange.
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1894 Guglielmo Marconi improves wireless telegraphy.
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First telephone answering machines.
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The first radio signal across the Atlantic Ocean.
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Lee Deforest invents the electronic amplifying tube or triode
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First cross continental telephone call made.
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First radios with tuners
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John Logie Baird transmits the first experimental television signal.
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NBC starts two radio networks.
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First television broadcasts in England.
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Radio popularity spreads with the "Golden Age" of radio.
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First television broadcasts in the United States.
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Joseph Begun invents the first tape recorder for broadcasting
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Television broadcasts able to be taped and edited
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Scheduled television broadcasts begin
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Long playing record invented
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Network television starts in U.S.
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Chester Carlson invents the photocopier or Xerox machine.
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Xerox invents the Telecopier, the first succesful fax machine.
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The first internet started.
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The computer floppy disc invented.
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HBO invents pay-TV service for cable.
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First cellular phone communication network started in Japan
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First cellular phone network started in the United States.
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Cellular telephones in cars become wide-spread.
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American government releases control of internet and WWw. is born.