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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
What does polling mean in I/O operations?
💡 Hint: Consider how the CPU finds out if a device is ready.
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 primary function of a device service routine?
- To manage CPU tasks
- To facilitate communication with I/O devices
- To perform memory allocation
💡 Hint: Think about what the routine does in relation to devices.
Question 2
True or False: Memory-mapped I/O shares an address space with main memory.
- True
- False
💡 Hint: Consider where devices are located in terms of address.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a device service routine for a temperature sensor that the CPU needs to read every minute. Describe its key functionalities and the steps it would take.
💡 Hint: Consider how often you need to check the sensor and what commands you would use.
Question 2
Explain how a conflict in the address space can occur when using memory-mapped I/O. Suggest a solution to avoid this issue.
💡 Hint: Think about how you'd manage addresses to prevent two students having the same locker.
Challenge and get performance evaluation