What is the unit of measurement for memory speed in RAM?
A. Both A and C
B. MHz
C. MB/s
D. MT/s
Answer: Option A
Solution (By JKSSB Mock Tests)
RAM speed is often measured in MHz (cycles per second) and MT/s (megatransfers per second) for DDR modules, where the effective data rate is double the clock frequency.
Explanation:
In the memory hierarchy, the fastest options (registers, cache) are small and expensive, while large capacity options (HDDs, SSDs) are farther from the CPU and have slower access speeds.
Explanation:
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.
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