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CSS - PMS - CCE - PCS - Basic Computing Practice

Computer Memory MCQs

Practice important Computer Memory MCQs with answers, explanations, theory links, and exam-focused preparation.

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Computer Memory

Computer Memory MCQs With Answers

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CSS - PMS - CCE - PCS - Basic Computing Computer Memory
Which memory loses data when power is switched off?
A. ROM
B. RAM
C. Hard Disk
D. SSD
Read Theory
Correct Answer: B
B: Correct because RAM is volatile memory and needs power to keep data. A: Wrong because ROM is non-volatile firmware storage. C: Wrong because a hard disk stores data even after power off. D: Wrong because an SSD is non-volatile flash storage.
CSS - PMS - CCE - PCS - Basic Computing Computer Memory
Which storage device has no moving mechanical parts?
A. SSD
B. Floppy disk
C. Traditional HDD
D. CD-ROM drive
Read Theory
Correct Answer: A
A: Correct because SSDs use flash memory and have no moving mechanical parts. B: Wrong because floppy drives use moving magnetic media. C: Wrong because traditional HDDs have spinning platters and moving heads. D: Wrong because CD-ROM drives spin optical discs.
CSS - PMS - CCE - PCS - Basic Computing Computer Memory
CPU cache memory is usually:
A. Slower than a hard disk
B. A high-speed memory close to the processor
C. A type of printer ink
D. A replacement for the monitor
Read Theory
Correct Answer: B
A: Wrong because cache is much faster than hard-disk storage. B: Correct because cache is high-speed memory used to speed up CPU access to data. C: Wrong because printer ink is unrelated to memory. D: Wrong because cache has no display function.
CSS - PMS - CCE - PCS - Basic Computing Computer Memory
Which memory is volatile and loses data when power is turned off?
A. ROM
B. Hard Disk
C. RAM
D. SSD
Read Theory
Correct Answer: C
A: Wrong because ROM normally keeps its contents without power. B: Wrong because a hard disk is non-volatile storage. C: Correct because RAM temporarily stores working data and loses it after power loss. D: Wrong because SSD storage is non-volatile.
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