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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 control commands in the context of I/O.
💡 Hint: What role do these commands play in device management?
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?
- It is inefficient because of continuous polling.
- It is the fastest method.
- It requires less memory.
💡 Hint: Think about how often the CPU checks the status.
Question 2
True or False: In memory-mapped I/O, I/O devices have their own distinct address space.
- True
- False
💡 Hint: Consider how memory and devices are structured.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an algorithm for a CPU to handle I/O operations with both memory-mapped and isolated I/O devices. Explain how the algorithm differentiates between the two.
💡 Hint: Consider how the addressing affects data transfer in terms of setup and execution.
Question 2
Evaluate the pros and cons of using programmed I/O versus direct memory access (DMA) for data transfers.
💡 Hint: Think about the implications each method has on CPU performance and efficiency.
Challenge and get performance evaluation