PASCALINE is a mechanical calculating device which was developed by Blaise Pascal in the year 1642 AD. It was the first desktop calculating device which was used for addition and subtraction. Pascal’s concept is still used in electric meters and taxi meters. Arithmetic operations can be performed by turning wheels.
WORKING OF PASCALINE’S CALCULATING MACHINE
PASCALINE machine consists of set of toothed wheels or gears with each wheel or gear has numbers from 0 to 9 in it. One full rotation of a wheel is called complete revolution and the next adjacent wheel towards left makes one-tenth of the revolution.
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