The amount of time required to read a... - Solved

Question 28

Computer Awareness Computer memory Easy

The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency and transfer time. Rotational latency refers to

(A) the time its taken for the platter to make a full rotation

(B) the time its taken for the read-write head to more into position over the appropriate track

(C) the time it taken for the platter to rotate the correct sector under the head

(D) to reduce number of bits in the field of instruction.

✓ Correct Answer: Option C Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

Disk access time = seek time + rotational latency + transfer time.

Seek time: time to move the read/write head to the correct track.
Rotational latency: time for the platter to rotate until the required sector comes under the head.
Transfer time: time to actually read the data.

Answer: (C)

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Question 28

📘 Step-by-Step Solution & Detailed Explanation:

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