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 understanding of what registers do in a computer system!
What is the primary purpose of the Program Counter (PC)?
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Which of the following are registers in the CPU? (Select all that apply)
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The {{blank0}} register temporarily holds the data fetched from memory or data to be stored in memory.
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Match the items on the left with their correct pairs on the right
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Which register is responsible for holding the result of arithmetic or logic operations?
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The {{blank0}} register is used to hold the address of the memory location currently being read or written.
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What does the CPU use the Memory Address Register (MAR) for?
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Which registers are directly involved in the fetch-decode-execute cycle? (Select all that apply)
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Match the items on the left with their correct pairs on the right
What is the main purpose of the Accumulator?
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