Practice Basic Requirements for I/O Operations - 25.1.3 | 25. Programmed I/O Overview | Computer Organisation and Architecture - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is meant by programmed I/O?

💡 Hint: Think about how devices and CPU communicate.

Question 2

Easy

Define memory-mapped I/O?

💡 Hint: Consider the relationship between memory and device addresses.

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 does I/O stand for?

  • Input/Output
  • Inside/Outside
  • Integrated/Organized

💡 Hint: Think about what the CPU works with.

Question 2

Is polling an efficient way to check device status?

  • True
  • False

💡 Hint: Consider how the CPU manages its resources.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Explain a system where using memory-mapped I/O could be more advantageous than isolated I/O. What factors would influence this choice?

💡 Hint: Consider complexity versus simplicity.

Question 2

If a CPU needs to interface with 100 dedicated devices using isolated I/O, calculate the minimum address space required for the devices if using 16-bit addressing.

💡 Hint: Think about binary addressing in terms of distinct addresses.

Challenge and get performance evaluation