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The evolution of computer has passed through a number of stages before it reached the present state of development. The earliest and simplest device that was used for calculations was the Abacus. Abacus was first developed by Chinese in 3000 B.C. It is still in use in some parts of Japan and China. It was simply a rectangular wooden frame, with rods carrying round beads. The frame is divided into two parts. One part consists of five beads whereas other consists of only two beads. In the part which consists of five beads, each bead represents digit one and in the second part each bead represents digit five. It is used for addition and subtraction.

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4 Responses

  1. jmalhotra says:


    but now lot of advancement is made into the field computers and the softwares but based on the theories laid down in the past

  2. lkjhgf says:

    There r lots of speed techniques available which helps us in calculating even faster than calculator and computers.

    The first abacus was almost based on a flat stone covered with sand or dust. Words and letters were drawn in d sand and later no.s were added and pebbles wer used 4 calculation.

    The virtue lies in the struggle, not the prize.

  3. asomormridul says:

    We still remember the multicolored balls we used to count while learning one, two in our early childhood. That type of tools no more found around our place these days. Moreover, there are so many likewise playing tools like building blocks and learning puzzles.

    I now realized that those balls over the wooden board we used to learn our primary numbers are a form of abacus only.

  4. lkjhgf says:

    The tool that u have described are still availabel in playschools and nursery.

    The virtue lies in the struggle, not the prize.

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