Technology Timeline

  • Phonograph

    Phonograph

    Phonographs play sound recorded on cardboard cylinders coated with wax.
  • Tape Recorders

    Tape Recorders

    Tape recorders using magnetic plastic tape appear in homes.
  • Telephones

    Telephones with push buttons and touch-tone dialing appear in homes.
  • Computers

    Computers

    First fully assembled personal computer, Apple II, is made available to the public.
  • Compact Discs

    Compact Discs

    CDs are developed. Music is stored in a digital format.
  • Refrigerators

    Fridges become more energy efficient and no longer contain CFCs.