Timeline created by Laia Méndez
  • telegraph - David Alter

    telegraph - David Alter
    Its a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
  • Radio - Guillermo Marconi

    Radio - Guillermo Marconi
    the transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.
  • Telephone- Alexander Graham Bell

    Telephone- Alexander Graham Bell
    Its a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
  • television - John Logie

    television - John Logie
    Its a system for converting visual images with sound into electrical signals, transmitting them by radio or other means, and displaying them electronically on a screen.
  • Computer - Konrad Zuse

    Computer - Konrad Zuse
    an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
  • Tablet - Alan Kay

    Tablet - Alan Kay
    it is a type of laptop, larger than a smartphone
  • Mobile Phone - Martin Cooper

    Mobile Phone - Martin Cooper
    its a telephone with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network.