Practice - Programmed I/O Overview
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Practice Questions
Test your understanding with targeted questions
What is programmed I/O?
💡 Hint: Look for how the CPU interacts with devices in a direct manner.
Define polling.
💡 Hint: Think about a wait-and-see method employed by the CPU.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main drawback of polling in programmed I/O?
💡 Hint: Think about what happens when the CPU is waiting.
True or False: Memory-mapped I/O and isolated I/O use the same addressing scheme.
💡 Hint: Consider how devices are recognized by the CPU.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Analyze the effects of CPU time wastage due to polling on system performance and suggest improvements.
💡 Hint: Consider productivity in environments relying on I/O.
Design a simple programmed I/O routine for a CPU to read from an input device and explain each step.
💡 Hint: Break down the routine into logical sequences.
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