Practice - Execution Cycle
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Practice Questions
Test your understanding with targeted questions
What does the Program Counter (PC) do?
💡 Hint: Think about instruction sequences.
What is stored in the Instruction Register (IR)?
💡 Hint: It's like an instruction manual.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Program Counter (PC) point to?
💡 Hint: Think about what it directs.
True or False: The Memory Buffer Register (MBR) holds addresses.
💡 Hint: Consider what each register holds.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given a scenario where the PC indicates an address that does not contain valid instructions, explain what happens next and how that impacts the processor.
💡 Hint: Think about error handling in CPU operations.
Assume the MAR holds an address and the MBR is empty. Describe the sequence of operations for fetching an instruction.
💡 Hint: Focus on the timing and order of signals.
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Reference links
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