What is the smallest storage unit in a computer? MCQ with Answer and Explanation

What is the smallest storage unit in a computer?
A. Kilobyte
B. Bit
C. Byte
D. Megabyte
Answer: Option B
Solution (By JKSSB Mock Tests)
A bit is the smallest unit, representing a 0 or 1.

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Practice More Computer Fundamentals Questions

Question #1
What mechanical calculation machine did Gottfried Leibniz improve upon to create the 'Step Reckoner', capable of performing multiplication and division automatically?
A. Jacquard Loom
B. Analytical Engine
C. Pascaline
D. Abacus

Correct Answer: Option C


Explanation:
Leibniz expanded the design of Pascal’s calculator (the Pascaline) by adding a stepped cylinder mechanism to allow automated multiplication.

This question belongs to: Computer Computer Fundamentals
Question #2
Which component inside a modern computer converts incoming alternating current (AC) power from a wall outlet into the stable direct current (DC) power required by internal circuitry?
A. UPS
B. BIOS
C. CPU
D. SMPS

Correct Answer: Option D


Explanation:
The SMPS (Switched-Mode Power Supply) regulates and converts electrical current from AC to safe, low-voltage DC for computer hardware.

This question belongs to: Computer Computer Fundamentals
Question #3
What is the octal equivalent of decimal 20?
A. 26
B. 25
C. 24
D. 23

Correct Answer: Option C


Explanation:
20 decimal = 24 octal (2*8 + 4 = 20).

This question belongs to: Computer Computer Fundamentals