The history of the computing

By JTR789
  • 3000 BCE

    Abacus

    Also called a counting frame, is a calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu–Arabic numeral system.

  • Proportion Circles

    The first sliding rule was invented by the English mathematician William Oughtred. The sliding rule (called "Proportion Circles") was a set of rotating disks that were calibrated with the logarithms of Napier