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Technology Timeline

Technology Timeline. Danielle Taylor Teaching in Technology. 1455. Johannes Gutenburg invents a printing press with metal movable type. 1821. Charles Wheatstone invents the first micro phone. 1831. Joseph Henry invents the first electrical telegraph. 1876.

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Technology Timeline

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  1. Technology Timeline Danielle Taylor Teaching in Technology

  2. 1455 Johannes Gutenburg invents a printing press with metal movable type

  3. 1821 Charles Wheatstone invents the first micro phone.

  4. 1831 Joseph Henry invents the first electrical telegraph.

  5. 1876 Alexander Graham Bell patents the electric telephone.

  6. 1925 John Logie Baird transmits the first experimental television signal.

  7. 1951 Computers are first sold commercially.

  8. 1958 Chester Carlson invents the photocopier (Xerox machine)

  9. 1971 The floppy disk was invented.

  10. 1983 First cell phone network started in the United States.

  11. 1994 American government releases control of internet and WWW is born.

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