Digital Communications

  • Telegraph

    Telegraph
    Made in the 1830s and 1840s by Samuel Morse, the telegraph made long distance talking more common.
  • Telephone

    Telephone
    Alexander Graham Bell's original telephone worked by converting sound into an electrical signal by a 'liquid transmitter'. This process centered around directing sound through a receiver and onto a thin membrane stretched over a drum.
  • Phonograph

    Phonograph
    A phonograph is a device for making sounds by vibration from the record. A record stores a copy of sound waves as a series of a sinuous groove inscribed on its rotating surface by the stylus.
  • Radio

    Radio
    Radio is sound communication by sound waves, usually through the transmission of music, news, and other types of programs from broadcast stations to individual listeners that have radios.
  • Television

    Television
    an electronic system of putting images of fixed or moving objects together with sound over a wire or through space apparatus converts light and sound into electrical waves and reconverts them into visible light rays and audible sound.
  • Computer

    Computer
    Very similar to TV, a system of transmitting transient images of fixed or moving objects together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound
  • Cell Phone

    Cell Phone
    a phone with access to radio system so it can be used over a wide area, without a physical connection to a network; a mobile phone.
  • Apple 1

    Apple 1
    This was the first Apple product, Also the first desktop computer. It uses light photos and videos to show the viewer what they need.
  • Macintosh

    Macintosh
    The Macintosh was the first widely-sold personal computer with a graphical user interface and a mouse. Apple Computer introduced the Macintosh in an ad during Super Bowl XVIII, on January 22, 1984, and offered it for sale two days later.
  • First Nokia Phone

    First Nokia Phone
    A phone used to access the internet and talk to friends.
  • First Blackberry Product

    First Blackberry Product
    the more commonly known convergent smartphone BlackBerry was released, which supports push email, mobile telephone, text messaging.Web browsing and other wireless information services.
  • HTC Dream

    HTC Dream
    This was the first android phone. Very similar to the iPhone with a different design