David Kelley's 21rst techTime line

  • Holes in Cards

    Holes in Cards

    a presence or absence of holes used as input for computers.
  • The analylitical machine

    The analylitical machine

    was the first computer, made of brass.
  • von Neumann architecture

    von Neumann architecture

    the first electronic general-purpose computer
  • ENIAC

    ENIAC

    a mainframe used for predicting the outcome of the presidential election.
  • UNIVAC

    UNIVAC

    an application used for programming mathematical applications.
  • high-level programming language

    high-level programming language

  • PC

    PC

    a more modern general-purpose computer for the average person.