The invention of the common electronic operating layout known as the Graphical User Interface (GUI) was pioneered by which lab? MCQ with Answer and Explanation

Question

The invention of the common electronic operating layout known as the Graphical User Interface (GUI) was pioneered by which lab?

A. IBM Research

B. Xerox PARC

C. Microsoft

D. Apple Computers

Answer: Option B

Solution (By JKSSB Mock Tests)

Xerox Palo Alto Research Center (PARC) engineered the Alto computer featuring mouse-driven windows, menus, and file icons.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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Who invented the first functional integrated circuit (microchip) in 1958?

A. Jack Kilby and Robert Noyce

B. Douglas Engelbart

C. Alan Turing

D. John Bardeen

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Correct Answer: Option A

Explanation:
Jack Kilby of Texas Instruments constructed the first working monolithic integrated circuit on a germanium chip, winning a Nobel Prize.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who invented the modern safety pin in 1849?

A. Walter Hunt

B. Eli Whitney

C. Elias Howe

D. Isaac Singer

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Correct Answer: Option A

Explanation:
Walter Hunt invented the safety pin in 1849 and sold the patent rights for just 400 dollars to pay off a debt.

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Question #3

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Who discovered the phenomenon of piezoelectricity in crystals in 1880?

A. Pierre and Jacques Curie

B. Heinrich Hertz

C. Wilhelm Röntgen

D. Marie Curie

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Correct Answer: Option A

Explanation:
Brothers Pierre and Jacques Curie discovered that physical stress applied to certain crystals generates an electric charge.

This question belongs to: Static General Knowledge Inventions and Discoveries

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