History of Computers

By casey.kirwan
  • Period: to

    History of Computers

  • John Napier

    Invented a set of rods that could be used to perform complex calculations.

  • Joseph-Maire Jacquard

    developed a weaving loom that used punched cards to replicate designs.

  • Charles Babbage

    made a machine that used input-execution-output.

  • Herman Hollerith

    Created a punched card calculator to count the U.S. Census in only six weeks.

  • Lee De Forest

    invented the electronic tube.

  • Colossus

    A computer completed in Great Britain.

  • Howard H. Aiken

    Made the first progammed controllled calculator.

  • Transistor

    Transistor was developed at Bell laboratories by William B. Shockley, Walter H. Brattain, and John Bardeen.

  • Integrated Circuit

    Integrated Circuit was created and changed computing forever.

  • microprocessors

    Developed in the early 1970's.

  • Apple I

    Created by Steve Jobs and Steve Wozniak.

  • Cray 1

    First Cray 1 was delivered.

  • Apple II

    Faster and more powerful than the apple I.

  • IBM asks MIcrosoft.

    IBM asked Microsoft to write a new operating system for the new PC.