What is the role of the I/O controller? MCQ with Answer and Explanation

Question
What is the role of the I/O controller?
A. Controls system clock
B. Performs arithmetic
C. Stores instructions
D. Manages data flow between CPU and peripherals
Answer: Option D
Solution (By JKSSB Mock Tests)
I/O controllers manage data transfer between the CPU and input/output devices.
This question belongs to: Computer Computer Fundamentals
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Practice More Computer Fundamentals Questions

Question #1
What key technology was introduced in third-generation computers to replace individual wired components, dramatically increasing computational speed?
A. Vacuum Tubes
B. Microprocessors
C. Transistors
D. Integrated Circuits
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Correct Answer: Option D

Explanation:
Integrated Circuits (ICs) combined multiple electronic components like transistors, resistors, and capacitors onto a single small silicon semiconductor chip.
This question belongs to: Computer Computer Fundamentals
Question #2
The small, high-speed temporary storage registers located directly inside the CPU chip to hold immediate data operands are part of the:
A. Secondary Storage Unit
B. Virtual Storage Unit
C. Processor Register Array
D. Auxiliary Memory
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Correct Answer: Option C

Explanation:
Registers are ultra-fast, local memory cells inside the CPU used to hold data currently undergoing immediate processing.
This question belongs to: Computer Computer Fundamentals
Question #3
What is the decimal equivalent of binary 1001?
A. 8
B. 9
C. 11
D. 10
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Correct Answer: Option B

Explanation:
1001 = 8+1 = 9.
This question belongs to: Computer Computer Fundamentals
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