Which of the following storage devices has the fastest data access time?
A. DVD-ROM
B. Magnetic tape
C. Solid-state drive (SSD)
D. Hard disk
Answer: Option C
Solution (By JKSSB Mock Tests)
SSDs have much lower access times than HDDs and optical discs because they have no moving parts and use flash memory. Magnetic tape is slower for random access.
Explanation:
The memory hierarchy is designed to provide a trade-off between speed (fast but expensive) and capacity (slow but cheap), optimizing overall system performance and cost.
Explanation:
A CD-ROM (Read-Only Memory) is manufactured with pre-stamped physical pits, meaning the stored information is immutable and cannot be rewritten.
No comments yet. Be the first to start the discussion!