Who invented the first mechanical computer, known as the 'Difference Engine'? MCQ with Answer and Explanation

Question
Who invented the first mechanical computer, known as the 'Difference Engine'?
A. Charles Babbage
B. Blaise Pascal
C. Alan Turing
D. John von Neumann
Answer: Option A
Solution (By JKSSB Mock Tests)
Charles Babbage designed the Difference Engine and the Analytical Engine, earning him the title 'Father of the Computer'.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Practice More Inventions and Discoveries Questions

Question #1
The invention of the common household safety matchbox strike face mixture containing red phosphorus was patented by whom?
A. John Walker
B. Humphry Davy
C. Pasch Brothers and John Lundström
D. Robert Boyle
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Correct Answer: Option C

Explanation:
The Swedish inventors split match chemical triggers, rendering matches safe from accidental friction ignition in pocket storage.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The invention of the common chemical process for production of sodium carbonate (soda ash) from salt and limestone is named after whom?
A. Nicolas Leblanc
B. Fritz Haber
C. Ernest Solvay
D. Carl Bosch
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Correct Answer: Option A

Explanation:
Nicolas Leblanc patented the early synthetic soda ash manufacturing method in 1791, satisfying early industrial glass and soap production needs.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered that electrical currents pass through vacuum cavities via discrete streams named 'Cathode Rays'?
A. Wilhelm Röntgen
B. William Crookes and Julius Plücker
C. J.J. Thomson
D. Michael Faraday
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Correct Answer: Option B

Explanation:
Plücker observed early glow phenomena, and Crookes engineered highly evacuated discharge tubes to isolate ray behaviors.
This question belongs to: Static General Knowledge Inventions and Discoveries
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