Practice Fetching and Executing Instructions - 12.4.1 | 12. Fetch Cycle | Computer Organisation and Architecture - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the Program Counter (PC) do?

💡 Hint: Think about where instructions come from.

Question 2

Easy

What is the purpose of the Memory Buffer Register (MBR)?

💡 Hint: Consider what happens while moving data.

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 the Program Counter (PC) do?

  • Stores current data
  • Holds address of next instruction
  • Executes instructions

💡 Hint: Recall the role of the PC in the instruction process.

Question 2

True or False: The Memory Address Register (MAR) holds the actual instruction.

  • True
  • False

💡 Hint: Consider what MAR is designed to do.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A CPU has a fetching speed of 4 GHz and a memory speed of 2 GHz. If you fetch an instruction every clock cycle, how does the difference in speeds affect the execution of a program?

💡 Hint: Consider the implications of mismatched speeds.

Question 2

Describe a scenario where an inefficient fetch-execute cycle could lead to performance bottlenecks in a system with a heavily loaded processor and memory.

💡 Hint: Think about how many processes are requesting instructions and how the cycle handles them.

Challenge and get performance evaluation