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Quiz: What Registers Do (Big Picture)
OCR GCSE J277 Computer Science specification
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Building on what you've learned about the CPU and the fetch-decode-execute cycle, let's test your knowledge of what registers do and how they contribute to the CPU's performance!
Which register holds the memory address of the next instruction to be executed?
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Which of the following registers are involved in the fetch-decode-execute cycle? (Select all that apply)
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The {{blank0}} register temporarily holds the data fetched from memory, while the {{blank1}} register holds the address of the data being accessed.
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Match the items on the left with their correct pairs on the right
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Which register is used to store the intermediate results of arithmetic operations?
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Match the items on the left with their correct pairs on the right
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What is the role of the Memory Address Register (MAR)?
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The {{blank0}} register stores the address of the next instruction, while the {{blank1}} register stores the result of calculations.
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Which of the following are examples of registers? (Select all that apply)
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Which register is responsible for temporarily holding the data that has been fetched from memory?
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