Which of the following is an example of primary storage?
A. RAM
B. Hard disk
C. CD-ROM
D. Pen drive
Answer: Option A
Solution (By JKSSB Mock Tests)
Primary storage (or main memory) includes RAM and cache, which are directly accessible by the CPU. Secondary storage includes hard disks, optical discs, and pen drives.
Explanation:
SSDs are purely electronic devices that use flash memory chips, meaning they lack the spinning platters, spindle motors, and moving read/write arms found in mechanical HDDs.
Explanation:
DDR4 common CAS latencies are around 14-16, though higher speeds may have CL18-22. DDR3 had CL9-11. DDR5 is higher (CL30+). So A is correct for typical DDR4.
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