History of Computing

Timeline created by jmb5813
  • First Generation Computers

    First Generation Computers
    They were huge, slow, expensive, and often undependable.
  • First Generation Computers

    First Generation Computers
    Presper Eckert, and John Mauchly built the ENIAC electronic computer which used vacuum tubes instead of the mechanical switches of the Mark I.
  • Second Generation Computers

    AT&T's Bell Laboratories regulated current or voltage flow and act as a switch for electronic signals.
  • First Generation Computers

    Vaccum tubes purpose was to act like an amplifier and a switch.
  • First Generation Computers

    Vacuum tubes could take very weak signals and make the signal stronger (amplify it).
  • First Generation Computers

    First Generation Computers
    The ENIAC gave off so much heat that they had to be cooled by gigantic air conditioners.
  • Third Generation Computers

    Jack Kilby at Texas Instruments and Robert Noyce at Fairchild Semiconductor independently developed integrated circuits.
  • First Generation Computers

    Even with these huge coolers, vacuum tubes still overheated regularly.
  • Second Generation Computers

    Transistor was faster, more reliable, smaller, and much cheaper to build than a vacuum tube.
  • Second Generation Computers

    Computer manufactures developed operating systems that provided standardized routines for input, output, memory management, storage, and other resource management actiites.
  • Second Generation Computers

    Second Generation Computers
    Transistors were made of solid material, some of which is silicon, an abundant element (second only to oxygen) found in beach sand and glass.
  • Second Generation Computers

    Ran programming language compilers that allowed programmers to write instructions using English-like commands rather thanmachine language 1s and 0s.
  • Second Generation Computers

    Early proprietary operating systems developed by IBM and other computer manufacturers were designed tow ork only on a particular compuer model.
  • Second Generation Computers

    After programmers found themselves writing print routines over and over again, they began to look for a more efficient method to standardize such routines.
  • Third Generation Computers

    Third Generation Computers
    Integrated circuit, or as it is sometimes referred to as semiconductor chip.
  • Third Generation Computers

    Two of the first computers to incorporate itegrated circuits were the RCA Spectra 70 and the widly computers were filled.
  • Third Generation Computers

    Intergrated circuit packs a huge number of transistors onto a single wafer of silicon.
  • Third Generation Computers

    They could carry out instructions in billionths of a second.
  • Third Generation Computers

    The size of these machines dropped to the size of small file cabinets.
  • Third Generation Computers

    DEC introduced a succession of minicomputers that stole a share of the mainframe market.
  • Fourth Generation Computers

    Ted Hoff developed the first general-purpose microprocessor.
  • Fourth Generation Computers

    The Intel 4004 was a microprocessor that dramatically changed the computer industry.
  • Fourth Generation Computers

    Motorola released the 6800 8-bit microprocessor.
  • Fourth Generation Computers

    Fourth Generation Computers
    Zilog introduced the Z80 microprocessor.
  • Fourth Generation Computers

    Apple II was sold to the public.