Practice Multiple Platter Mechanism (31.2.3) - Disk Characteristics - Computer Organisation and Architecture

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11 questions

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6 sample questions

Question 1.
What is a platter in a hard disk?
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Think of the surface that stores data.
Question 2.
Name two types of head mechanisms in disk drives.
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Recall the mechanism roles in accessing tracks.
3Question 3.
What does the term 'bit density' refer to?
- Data stored per area
- Disk rotation speed
- Time to access data
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Think about how data is measured on the disk's surface.
4Question 4.
True or False: Fixed heads allow one read/write head per track.
- True
- False
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Recall what fixed heads are designed for.
Question 5.
A hard disk has 5 platters and maintains a consistent bit density of 512 bits/sq inch. If each platter has a diameter of 6 inches, calculate the total data storage capacity.
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Use the area formula for circular disks and think about how density translates to storage.
Question 6.
If a movable head disk system has a seek time of 10 ms and a rotational latency of 5 ms, what is the total average access time?
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Simply add the two times for average access.

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