History of Digital Computer

Which electromechanical analog computer was developed by the United States Navy during World War II?

• 
  Torpedo Data Computer

• Z2

• Z4

• Z3

Who created the Z3, the world's first working electromechanical programmable computer?

• 
  Konrad Zuse

• ETH Zurich

• 
  United States Navy

• Charles Babbage

How many relays did the Z3 computer have?

• 
  100

• 2000

• 500

• 
  1000

Which company manufactured the world's first commercial computer, the Z4?

• 
  Zuse KG

• 
  ETH Zurich

• United States Navy

• 
  Torpedo Data Computer

What technology did Zuse's machines use to perform calculations that made them easier to build and potentially more reliable?

• 
  Vacuum tube system

• 
  Electromechanical system

• 
  Decimal system

• 
  Binary system

Who was the engineer who explored the use of electronics for the telephone exchange?

• 
  Tommy Flowers

• 
  Max Newman

• 
  John Vincent Atanasoff

• 
  Clifford E. Berry

Which computer was used by British code-breakers at Bletchley Park during World War II?

• ENIAC

• 
  Mark II

• 
  Colossus

• 
  ABC

What type of encryption machine was attacked with the help of electro-mechanical bombes?

• ABC

• 
  Lorenz SZ 40/42

• 
  Enigma

• 
  Colossus

Which computer was both faster and simpler to operate than its predecessor?

• Colossus Mark II

• 
  ABC

• 
  ENIAC

• Colossus Mark I

What was the first electronic, Turing-complete device that performed ballistics trajectory calculations?

• 
  Mark I

• 
  ENIAC

• 
  Colossus

• ABC