1)Who Invented " Abacus ".


A) Napier

B) Unknown

C) Pascal






2) Who invented " Hollerith Tabulating Machine ".

A) Pascal

B) Herman Hollerith

C) Charles Babbage





3) Who invented " Difference Engine ".

A) Charles Babbage

B) Blaise Pascal

C) John Napier

4) Who invented " The Rotating Wheel Calculator".

A) Blaise Pascal

B) Charles Babbage

C) Herman Hollerith





5) Who invented " Slide Role ".

A) Charles Babbage

B) Herman Hollerith

C) William Oughtred





6) Who invented " Napier's Bones ".

A) Unknown

B) John Napier

C) Pascal