1) The first mechanical device developed to calculate in China. a) Abacus b) Calculator c) Difference Engine 2) Who is known as the father of modern computer ? a) John Napier b) Charles Babbage c) Blaise Pascal 3) Early Calculating Device able to calculate square roots is ____________ a) Leibniz Calculator b) ABACUS c) Pascal's Adding Machine 4) ______________ is the calculating device invented by Leibniz. a) Pascaline b) Stepped Reckoner c) ENIAC 5) ________ is an input device used in Tabulating Machine during 1906. a) Mouse b) Keyboard c) Punched Cards 6) French Mathematician to invent a calculator which worked on gear principle. a) Herman Hollerith b) Blaise Pascal c) Charles Babbage 7) An English Mathematician to link complex calculations to binary number system. a) Howard Aiken b) George Boole c) Leibniz 8) The two important inventions of Charles Babbage are________ and ______. a) Analytical and Difference Engine b) ABACUS and Boolean Logic c) Mark I and Adding Machine 9) Boolean Logic links to binary system representing numbers ______ and ______. a) 1 and 2 b) 3 and 4 c) 0 and 1 10) Special feature of Mark I was - a) was capable of reading and processing data. b) was first Automatic Sequence Controlled Calculator c) was a perfect example of mechanical calculator.

Early Calculating Devices

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