In terms of time, rotational delay in a disk device takes on average roughly _____.
A) no time
B) one quarter of a revolution
C) one half of a revolution
D) one revolution
E) two revolutions

Question

Quizplus · Accepted Answer

Rotational delay is the time it takes for the disk to rotate to the correct sector under the read/write head. It is typically half of a revolution since the head is located halfway between two adjoining sectors.

In Terms of Time, Rotational Delay in a Disk Device