Practice Steps in Programmed I/O - 25.1.2 | 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 programmed I/O?

💡 Hint: Think about how the CPU interacts with devices.

Question 2

Easy

Define polling in the context of I/O.

💡 Hint: Consider how the CPU ensures devices are ready for communication.

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 programmed I/O require the CPU to do?

  • Send interrupts
  • Check status bits
  • Wait indefinitely

💡 Hint: Consider how the CPU controls communication with I/O devices.

Question 2

True or False: In programmed I/O, the I/O module can directly interrupt the CPU.

  • True
  • False

💡 Hint: Think about how the CPU and I/O device communicate.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a simple interaction between a CPU and an I/O device using programmed I/O. Include steps for issuing commands, checking status, and reading/writing data.

💡 Hint: Break down each part of the interaction into clear, logical steps.

Question 2

Discuss how using programmed I/O can lead to inefficiencies in CPU performance and suggest possible alternatives.

💡 Hint: Think about how interaction dynamics between devices and the CPU can be improved.

Challenge and get performance evaluation