Archive for the ‘Computer History’ Category

  • Email–Back to the basics…

    Wednesday, January 13th, 2010

    You probably know all this stuff, but…
    Email is one of the oldest uses of computer networks. In fact, email predates the World Wide Web by more than two decades. Email was one of the first applications that was used to transport information on the Internet, when the Internet was nothing more than a few interconnected [...]

  • Types of Computers

    Thursday, December 17th, 2009

    There are three different types of computers namely analog, digital and hybrid.
    ~ Analog Computer operates by measuring physical units such as voltage, pressure, temperature, speed, etc. Analog computers are used for scientific and engineering applications that deal with a property which is changing continuously.
    ~ Digital Computer operates on numbers consisting of 0’s and [...]

  • IBM PC Models

    Wednesday, October 21st, 2009

    Model name
    Model
    Introduced
    CPU
    Features

    PC
    5150
    August 1981
    8088
    Floppy disk or cassette system

    XT
    5160
    March 1983
    8088
    First IBM PC to come with an internal hard drive as standard.

    XT/370
    5160/588
    October 1983
    8088
    5160 with XT/370 Option Kit and 3278/79 Emulation Adapter

    3270 PC
    5271
    October 1983
    8088
    With 3270 terminal emulation

    PCjr
    4860
    November 1983
    8088
    Floppy-based home computer

    PC Portable
    5155
    February 1984
    8088
    Floppy-based portable

    AT
    5170
    August 1984
    80286
    Medium-speed hard disk

    AT/370
    5170/599
    October 1984
    80286
    5170 with AT/370 Option Kit and 3278/79 Emulation Adapter

    3270 AT
    5281
    ?
    80286
    With 3270 terminal emulation

    Convertible
    5140
    April [...]

  • IBM Thinkpad–The Story behind the Name

    Saturday, October 3rd, 2009

    IBM Thinkpad is probably one of the most well known laptop models. It bagged more than 300 design awards and even went to space abroad various space missions. Where does the name ‘Thinkpad’ come from? What is story behind it?
    Ever since the IBM Thinkpad was launched in 1992, it became an instant hit. It was [...]

  • History of Apple Computers

    Friday, August 21st, 2009

    Apple was founded by Steve Wozniak and Steve Jobs in the 70s. They launched the company of April Fools’ Day in 1976. Earlier, Wozniak and Jobs worked for Hewlett-Packard and Atari. Working as hobbyists, they created the first Apple I and presented it at the Homebrew Computer Club. Subsequently, they started selling it as a [...]

  • Roman Abacus

    Saturday, July 18th, 2009

    The Roman abacus was developed in ancient Rome from the Babylonian abacus. The Roman abacus is a portable base 10 version of the Babylonian abacus. When compared with the later, the Roman abacus is less capable.
    The Roman abacus was the 1st portable calculating device that was used by architects, engineers, merchants and tax collectors. It [...]

  • Invention of the Abacus

    Friday, July 3rd, 2009

    The abacus was one of the greatest inventions in the history of mankind. It led to development of mathematics and expansion of sciences and travel. It also played an important role in the expansion of trade and commerce. Modern electron computers and calculators have their origins in the abacus. In fact, we can consider the [...]