By g3a
  • Computer

    Blaise Pascal invented a mechanical used gears and leavs to add and subtract numbers.
  • computer

    Charles Babbage designed the Analyticad engine. it could solve more than one math poroblem.
  • coputer

    Howard H Aiken built he first electrical calculator called Mark1. Mark1 was as long as half of a football field it used 500 miles of wires.
  • computer

    John Presper eckert and John Mauclly made