Practice Head Mechanisms (31.2) - Disk Characteristics - Computer Organisation and Architecture - Vol 3

Practice: Head Mechanisms

Lesson 31.2Disk Characteristics

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8 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does constant angular velocity mean in terms of disk operation?
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Think about how speed influences access times.
Question 2.
Define seek time.
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Consider the physical movement of the head to access data.
3Question 3.
What does rotating at a constant angular velocity imply for time management?
- More time needed to retrieve data from outer tracks.
- Same time for data retrieval
- regardless of track location.
- Variable time based on speed variations.
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Think about the implications of consistent speed.
4Question 4.
Is seek time defined as the time taken to bring the correct sector beneath the read-write head?
- True
- False
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Consider seeking and waiting as different processes.
Question 5.
Describe how you would redesign a fixed head disk mechanism to improve its efficiency without raising costs significantly.
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Think about balancing mechanical and software efficiencies.
Question 6.
Given a disk with varying bit densities, calculate the average time required to access data across inner and outer tracks.
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Consider the comparative size of bit densities and their layout.

4 more questions in this section. Enroll free to practise them all.