Which electronic component served as the core physical switcher and amplifier inside second-generation computers, rendering vacuum tubes obsolete? MCQ with Answer and Explanation

Question
Which electronic component served as the core physical switcher and amplifier inside second-generation computers, rendering vacuum tubes obsolete?
A. Transistors
B. Silicon Microchips
C. Integrated Circuits
D. Magnetic Drums
Answer: Option A
Solution (By JKSSB Mock Tests)
Transistors replaced vacuum tubes in the second generation, making computers smaller, faster, cooler, and far more energy efficient.
This question belongs to: Computer Computer Fundamentals
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Practice More Computer Fundamentals Questions

Question #1
What is the role of the motherboard?
A. Stores data permanently
B. Performs arithmetic operations
C. Connects all components of the computer
D. Manages power supply
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Correct Answer: Option C

Explanation:
The motherboard is the main circuit board that connects the CPU, memory, and peripherals.
This question belongs to: Computer Computer Fundamentals
Question #2
Which component of the CPU stores temporary data?
A. Registers
B. ALU
C. Cache
D. Control Unit
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Correct Answer: Option A

Explanation:
Registers are small, fast storage locations within the CPU that hold intermediate data.
This question belongs to: Computer Computer Fundamentals
Question #3
Which of the following is a characteristic of a mainframe computer?
A. High reliability and availability
B. Used by a single user
C. Low processing power
D. Small physical size
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Correct Answer: Option A

Explanation:
Mainframes are known for high reliability, availability, and massive I/O capacity.
This question belongs to: Computer Computer Fundamentals
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