COMPUTER 111 Lecture 1: History of Computer 111 - Study Notes
16 Oct 2021
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Abacus- it was the first mechanical calculating device for counting of large. The word abacus hears, calculating board, it consists of bars in horizontal positions on which sets of board are inserted. The horizontal bars have 10 beads each representing unit, tens, hundred, etc. Napier"s bones it was a mechanical device built for the purpose of multiplication in. 1617 ad, by an english mathematician john napier. Slide rule it was developed by an english mathematician edmund gunter in the. Using the slide rule, one could perform operations like addition, subtraction, multiplication and division. The machine consisted of wheels, gears and cylinders. It was a mechanical device that could both multiply and divide. German philosopher and mathematician gottfried leibniz built it around. An english man charles babbage built a mechanical machine to do complex mathematical calculations, in the year 1823. Lovelace developed a general- purpose calculating machine, the analytical engine.
