What is the primary technical limitation of first-generation computers that utilized vacuum tubes? MCQ with Answer and Explanation

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What is the primary technical limitation of first-generation computers that utilized vacuum tubes?

A. They lacked any mathematical capability.

B. They relied entirely on integrated circuits.

C. They were extremely slow compared to mechanical calculators.

D. They consumed immense power and generated excessive heat, requiring heavy cooling systems.

Answer: Option D

Solution (By JKSSB Mock Tests)

Vacuum tubes were fragile glass components that consumed massive amounts of electricity, emitted extreme heat, and burned out frequently.

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Question #1

Which generation introduced the concept of parallel processing?

A. Fourth

B. Fifth

C. Third

D. Second

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Correct Answer: Option B

Explanation:
Fifth-generation computers focus on parallel processing and AI.

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Question #2

Which of the following is a characteristic of first-generation computers?

A. Used high-level languages

B. Used machine language

C. Used microprocessors

D. Used magnetic cores

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Correct Answer: Option B

Explanation:
First-generation computers were programmed in machine language (binary) and used vacuum tubes.

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Question #3

What is the main advantage of integrated circuits over transistors?

A. More reliable but slower

B. Easier to manufacture

C. Higher speed only

D. Smaller size and lower cost

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Correct Answer: Option D

Explanation:
ICs pack many transistors into a small chip, reducing size and cost, while increasing reliability.

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