Computer 8

When was the abacus invented?

• around 3000 BC

• around 5000 BC

• around 4000 BC

• around 7000 BC

what invention is shown in the figure?

• Pascaline

• Napier's bone

• Jacquard loom

• abacus

Mechanical era means

• where machine parts were used

• everything electronic

• combination of electronic and mechanical parts

• Counting

who invented Pascaline

• Blaise Pascal

• Charles Babbage

• Egyptians

• Gottfried wilhelm

who invented the analytical engine

• Joseph Marie Jacquard

• Charles Babbage

• Lady Augusta ada lovelace

• Nicklaus Writh

The jacquard loom used which device to input data

• keyboard

• mouse

• punch cards

• scanner

Name the first computer Nepal imported to process census data

• PDP 11

• IBM 1401

• PC

• Cray 1

ENIAC computer had how many vacuum tubes

• 20000

• 1000

• 18000

• 3000

Leibnitz calculating device is also called

• Difference engine

• Stepped reckoner

• ABC

• Slide rule

Slide rule was invented in

• 1617

• 1620

• 1642

• 1823