Practice Special I/o Commands (25.4.3) - Programmed I/O Overview - Computer Organisation and Architecture

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10 questions

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Quiz
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6 sample questions

Question 1.
What does polling refer to in I/O operations?
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Think about how you wait for a device to be ready.
Question 2.
Define memory-mapped I/O.
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What happens to addresses in this situation?
3Question 3.
What is the primary problem with polling in I/O operations?
- Wastes CPU time
- Increases data transfer speed
- Simplifies programming
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Think about the efficiency of waiting.
4Question 4.
True or False: Control commands are only used in isolated I/O.
- True
- False
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Recall the function of control commands in general.
Question 5.
Design a simple flowchart that illustrates the steps taken by a CPU to perform an I/O operation using programmed I/O.
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Think about the logical sequence of events for an I/O operation.
Question 6.
Discuss potential improvements that could be made to programmed I/O to enhance efficiency and specify how you might implement them.
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Consider the trade-offs between waiting and immediate notification.

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