History of computers

Where was the abacus invented

• China

• USA

• India

Name the person

• Charles Babbage

• Konrad Zuse

• Herman Hollerith

The Father of computers is (a)  

The first commercial computer prouced in the US is ______

• Z3

• UNIVAC

• ENIAC

Name the device

• ENIAC

• UNIVAC

• ABC

Blaise Pascal invented this mechanical calculator, it was named as _______

• Pascaline

• Leibniz Calculator

• Abacus

The first digital electronic computer-ABC was bulit by __________

• John V Atanasoff

• Clifford E Berry

• Both a and b

The first "read only memory device" was ____________

• Difference Engine

• Jacquard Loom

• Z3

Herman Hollerith invented an Electronic counting device which used ____________

• Vacuum tubes

• Punch-cards

• rods

who made the first mechanical calculator in 1642?

• Gottfried Leibniz

• John Napier

• Blaise Pascal