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History of Computer Hi guys,               This historical time-line covers the origins of the first mechanical and electronic computers.  1.Mechanical Computer  (1623-1945) The idea of using machines to solve mathematical problems can be traced at least as far as the early 17th century.In 1642 Blaise Pascal (a famous French mathematician) invented an adding machine based on mechanical gears in which numbers were represented by the cogs on the wheels.This calculators that was capable of addition, subtraction, multiplication, and division.                                  Englishman, Charles Babbage , invented in the 1830's a  "Difference Engine" made out of brass and pewter rods and gears, and also designed a further ...