The invention of the common computing peripheral device known as the dot-matrix print layout was introduced by which company? MCQ with Answer and Explanation

The invention of the common computing peripheral device known as the dot-matrix print layout was introduced by which company?

A. Apple

B. Centronics

C. Canon

D. IBM

Answer: Option B

Centronics introduced the impact needle dot matrix printer model in 1970, standardizing early computer ribbon output designs.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1 Report Error

Who discovered the true nature of combustion as an oxidation process, disproving the phlogiston theory?

A. Robert Boyle

B. Antoine Lavoisier

C. Joseph Priestley

D. John Dalton

Correct Answer: Option B

Explanation:
Antoine Lavoisier demonstrated that combustion involves elements chemically combining with oxygen.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2 Report Error

Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?

A. Peter Mansfield

B. Isidor Isaac Rabi

C. Felix Bloch

D. Paul Lauterbur

Correct Answer: Option B

Explanation:
Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3 Report Error

Who discovered the existence of the atomic nucleus through the famous Gold Foil Experiment?

A. Niels Bohr

B. J.J. Thomson

C. John Dalton

D. Ernest Rutherford

Correct Answer: Option D

Explanation:
Ernest Rutherford discovered the dense, positively charged atomic nucleus in 1911 by firing alpha particles at thin gold sheets.

This question belongs to: Static General Knowledge Inventions and Discoveries