History of Computers

By Yalena

  • Machine for Census

    Herman Hollerith, an American inventor, built a machine to count a census. It used punched cards and gears like the previous ones, but it worked with electricity.

  • First computer called ENIAC

    The first computer called ENIAC is introduced to the public. It was built at the University of Pennsylvania (USA) and operated with more than 17,000 vacuum tubes. It could make 5,000 additions and 300 multiplications per second.

  • Invention of transistors

    The second generation of computers starts, which used transistors to process information instead of vacuum tubes.

  • Integrated circuits

    Integrated circuits begin to be used in the computers, which increased the processing capacity and reduced the size of the machines.

  • The microprocessor appears

    The microprocessor appears: a single integrated circuit in which the basic elements of the computer meet. The first personal computers begin to develop.

  • Steve Jobs and Steve Wozniak make the Apple I.

    Steve Jobs and Steve Wozniak make the Apple I. This computer allowed users to see what they were doing on a screen

  • The IBM PC

    The IBM PC is on sale as a home computer and revolutionizes computing. It increases the development of software and operating systems with which computers run.

  • It appears the WWW or Web

    It appears the WWW or Web, one of the main internet services, which makes the use of computers more useful in different areas.

  • The development of smartphones

    The development of smartphones starts with the presentation of the Simon phone that included calendar, address book, world clock and calculator, among other functions.

  • A prototype tablet called Nokia 510 webtablet is introduced

    A prototype tablet called Nokia 510 webtablet is introduced, with a 10 inches touch screen.