Selected MCQ

Current Question
The first mechanical calculator was invented in which year?
  • A. 1543
  • B. 1642
  • C. 1858
  • D. 1972
Correct Answer: B
Explanation:
Blaise Pascal invented the Pascaline mechanical calculator in 1642.
Related Question 1
The first-ever mechanical calculator was invented by ____.
  • A. Sir Isaac Newton
  • B. Leonardo da Vinci
  • C. Blaise Pascal
  • D. Albert Einstein
Correct Answer: C
Explanation:
Blaise Pascal invented the mechanical calculator (Pascaline) in 1642.
Related Question 2
When was the first electromechanical computer developed?
  • A. 1880
  • B. 1944
  • C. 1960
  • D. 1980
Correct Answer: B
Explanation:
The Harvard Mark I (1944) was the first electro-mechanical computer.
Related Question 3
The First Mechanical Computer Designed by Charles Babbage was called ____.
  • A. Abacus
  • B. Supercomputer
  • C. Analytical Engine
  • D. Processing Machine
Correct Answer: C
Explanation:
Charles Babbage designed the Analytical Engine (1837), a mechanical general-purpose computer.
Related Question 4
In 1940, first electronic computer was invented by ____.
  • A. Clifford Berry
  • B. George Boole
  • C. Atanasoff and Berry
  • D. John V. Atanasoff
Correct Answer: C
Explanation:
The Atanasoff-Berry Computer (ABC) was the first electronic digital computer.
Related Question 5
Microsoft’s better performance than a mechanical calculator due to ____.
  • A. Speed
  • B. Storage
  • C. Versatility
  • D. Accuracy
Correct Answer: D
Explanation:
Computers provide far higher accuracy than mechanical calculators.