History of Computing

By mpa5058

  • First Generation Computers

    The day and month may not be right. Computers began to come about.

  • Vacuum tubes

    Vacuum tubes
    Was used on all the First Generation computeers.
    Image from Google Images

  • Atanasoff-Berry Computer (ABC)

    Atanasoff-Berry Computer (ABC)
    Was the first to use vaccum tubes instead of mechanical switches for processing circitry. Considered the first electronic digital computer.
    Image from Google Images

  • Z3

    Was designed to work with binary numbers. Built by Nazi Germany during WWII.

  • COLOSSUS

    Electronic device designed to decode messages encrypted be the German Enigma machine. Contained 1,800 vacuum tubes.

  • ENIAC

    Electronic Numerical Intergrator and Computer, was designed to calculate trajectory tables for the U.S. Army. It could perform 5,000 additions per second.

  • UNIVAC

    Again the date might not be right, but is considered the first commercially successful digital computer. The first UNIVAC computer was constructed under the auspices of the Eckert-Mauchly Computer Corp.

  • Second Generation

    Not sure the date again, does not say in the book. They used transistors instead of vacuum tubes.

  • Transistors

    Transistors
    Regulate current or voltage flow and acts as a switch for electronic signals.
    Image from Google Images

  • Companies

    IBM, Burroughs, Control Data, Honeywell, and Sperry Rand all manufactured computers with transistors.

  • IBM's Business computer

    Operating systems that provided stamdardized routines for input, output, memory management, storage, and other resource managment activities.

  • Third Generation Computers

    Used intergrated circutry

  • RCA Spectra 70

    One of the first two computers to incorperate intergrated circuits.

  • IBM 360

    IBM 360
    The second of the first two to recieve intergrated circuits.
    Image from google images

  • DEC PDP-8

    The first successful minicomputer. They were built to be smaller and less powerful then the mainframe, but still be able to run multiple programs at once.

  • Fourth Generation Computers

    Ted Hoff developed the first general-purpose microprocessor.

  • 8-bit Microprocessor

    Motorola released the first 8 bit microprocessor.

  • Mark-8

    Mark-8
    Was a personal computer developed by Jonathan A. Titus.
    Image form google images

  • MITS Altair

    Was the first commercial microcomputer. Based on the Intel 8080 processor.

  • Apple I

    A kit containing a system board with 4 KB of RAM.

  • Z80 microprocessor

    Was an enhanced 8080 microprocessor that was used in many early computer systems.

  • Apple II

    Featured color graphics, expansion slots, a disk drive, a 1.07 MHz 6502 processor, and 16 KB of RAM.

  • IBM PC

    IBM PC
    Had 4.77 MHz Intell 8088 processor, 16KB of RAM, and single sided 160 KB floppy disks drives.
    Image from google images.

  • IBM PC XT

    Featured with RAM upgradable to 640 KB, and a 10 MB hard disk drive.

  • Apple Lisa

    the key feature was the graphical user interface.

  • Apple MAcintosh

    Apple MAcintosh
    Featured a graphical user interface that made programs easier to use than those on the commandd-line-base IBM PC.
    Image from google images