Describe the factors that contribute to a disk drive’s average access time. Which of these factors is improved if the spin rate is increased? Which is improved if areal density is increased?

See Explanation Below

Explanation:

The question is divided into three parts

1. Describe the factors that contribute to a disk drive’s average access time.

The answer to this is

a. Rotational Delay

b. Track-to-Track seek time or head movement

c. Head to head switching time

Each of the aforementioned factors affects the disk drive's average access time.

The rotational delay is the time between information requests and how long it takes the hard drive to move to the sector where the requested data is located

Track to track is the amount of time it takes the read/write head to search or seek between adjacent tracks

Head to head switching is an action taken by the hard drive head that moves the current action being performed on one read/write head to another

2. Which of these factors is improved if the spin rate is increased?

In the aforementioned factors, the rotational delay gets decreased when the spin rate gets increased.

3. Which is improved if areal density is increased?

The track to track seek time gets improved; the reason for this is that the the increment in the areal density makes the tracks to become narrowed and tightened together.

answer:

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