The term Computer originally meant a person capable of performing numerical calculations with the help of a mechanical computing device. The evolution of computers started way back in the era before Christ. Binary arithmetic is in the core of computer systems. Historical past of computers dates back to the invention of a mechanical adding machine in 1642. ABACUS an early computing tool the invention of logarithm by John Napier along with the invention of slide rules by William Oughtred had been...
