write few lines about 1.Abacus 2.Charles babbage
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Charles Babbage, (born December 26, 1791, London, England—died October 18, 1871, London), English mathematician and inventor who is credited with having conceived the first automatic digital computer.
Inventions: Analytical Engine; computer; Differ...
Born: December 26, 1791; London, England
Died: October 18, 1871 (aged 79); London, En...
An abacus is a manual aid to calculating that consists of beads or disks that can be moved up and down on a series of sticks or strings within a usually wooden frame. The abacus itself doesn't calculate; it's simply a device for helping a human being to calculate by remembering what has been counted.
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