What is the maximum storage capacity of a standard dual-layer DVD?
A. 15 GB
B. 9.4 GB
C. 8.5 GB
D. 4.7 GB
Answer: Option C
Solution (By JKSSB Mock Tests)
A dual-layer DVD (DVD-9) holds about 8.5 GB (or 7.95 GiB). Single-layer is 4.7 GB. Some double-sided DVDs have more, but standard dual-layer is 8.5 GB.
Explanation:
Early double-sided single-density or double-density 5.25-inch floppy disks used on classic PC hardware typically maxed out around 360 KB of capacity.
Explanation:
Secondary storage refers to non-volatile storage that is not directly accessible by the CPU, such as hard disks, SSDs, and optical discs. RAM and cache are primary storage; registers are internal to CPU.
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