What is the average access time of a hard disk typically composed of?
A. Seek time + Transfer time
B. Seek time + Rotational latency
C. Rotational latency + Transfer time
D. Seek time + Rotational latency + Transfer time
Answer: Option D
Solution (By JKSSB Mock Tests)
The average access time for a hard disk is the sum of seek time (head movement), rotational latency (waiting for sector), and transfer time (reading/writing data).
Explanation:
Thrashing occurs when the operating system spends more time moving system resources between virtual and physical memory than actually executing process instructions.
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:
A megabyte (MB) in binary context is 2^20 = 1,048,576 bytes. In decimal, it is 1,000,000 bytes, but in computing, binary multiples are often used for memory.
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