Which component inside a desktop computer case serves as the central structural circuit board, linking the CPU, memory, and expansion cards together? MCQ with Answer and Explanation

Which component inside a desktop computer case serves as the central structural circuit board, linking the CPU, memory, and expansion cards together?
A. Sound Card
B. Power Supply Brick
C. Motherboard
D. Hard Drive Platters
Answer: Option C
Solution (By JKSSB Mock Tests)
The motherboard (or mainboard) is the primary printed circuit board that physically connects and enables communication among hardware components.

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Practice More Computer Fundamentals Questions

Question #1
Which computing pioneer designed the 'Analytical Engine', an unbuilt mechanical machine that conceptually utilized sequential control loops and condition jumps?
A. Blaise Pascal
B. Alan Turing
C. John von Neumann
D. Charles Babbage

Correct Answer: Option D


Explanation:
Charles Babbage's design for the Analytical Engine detailed an programmable mechanical computer featuring modern control logic concepts.

This question belongs to: Computer Computer Fundamentals
Question #2
What is the binary equivalent of decimal 50?
A. 110010
B. 111010
C. 101010
D. 100110

Correct Answer: Option A


Explanation:
50 = 32+16+2 = 110010 binary.

This question belongs to: Computer Computer Fundamentals
Question #3
What historic calculating invention by Herman Hollerith introduced a mechanical pin mechanism that completed electrical circuits when it encountered a hole in a card?
A. Difference Engine
B. Punched Card Tabulator
C. Step Reckoner
D. Pascaline

Correct Answer: Option B


Explanation:
Hollerith's tabulating machine used electromechanical sense pins that completed electrical circuits through holes punched in paper cards.

This question belongs to: Computer Computer Fundamentals