Practice Addressing I/O Devices - 25.3 | 25. Programmed I/O Overview | Computer Organisation and Architecture - Vol 3
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the CPU do when it needs to communicate with an I/O device?

💡 Hint: Think about how the CPU checks for readiness.

Question 2

Easy

What are the two main addressing schemes for I/O devices?

💡 Hint: Consider how each scheme relates to memory.

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 method called when the CPU continuously checks the device status?

  • Polling
  • Interrupts
  • Buffering

💡 Hint: Think of what the CPU does while waiting.

Question 2

True or False: Memory-mapped I/O shares the same address space with memory.

  • True
  • False

💡 Hint: Consider how devices might be accessed in programming.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Evaluate the efficiency of programmed I/O in a scenario with multiple I/O devices that require frequent interaction. Discuss improvements possible.

💡 Hint: Consider how operations are prioritized and CPU workload.

Question 2

Design a simple flowchart that outlines the steps involved in using programmed I/O with an emphasis on addressing I/O devices. Include all commands discussed.

💡 Hint: Set clear steps and decisions in your flowchart.

Challenge and get performance evaluation