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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is programmed I/O?
💡 Hint: Think about how the CPU interacts with devices.
Question 2
Easy
Define polling in the context of I/O.
💡 Hint: Consider how often the CPU checks devices.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the main disadvantage of programmed I/O?
- Increased communication speed
- CPU time wastage
- Simpler architecture
💡 Hint: Consider how often the CPU waits for responses.
Question 2
True or False: Memory-mapped I/O and isolated I/O can use the same addresses for devices and memory.
- True
- False
💡 Hint: Think about how addresses are allocated.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a system where the CPU polls an input device. Calculate how CPU wasted time scales with the number of devices being polled. Discuss ways to optimize this.
💡 Hint: Think about the implications of adding devices.
Question 2
Explain how the choice between memory-mapped and isolated I/O affects system design. Give an example of when to prefer one over the other.
💡 Hint: Consider the size and complexity of your system.
Challenge and get performance evaluation