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!
Which register stores the memory address of the next instruction to be executed?
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Which of the following are roles of the Memory Address Register (MAR)? (Select all that apply)
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The {{blank0}} temporarily holds the result of calculations performed by the ALU.
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Match the items on the left with their correct pairs on the right
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If an instruction is stored at memory address 00101101 and the next instruction is at 00101110, what will the Program Counter hold next?
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Which register temporarily holds data that has been fetched from memory or is to be written to memory?
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Match the items on the left with their correct pairs on the right
During the fetch-decode-execute cycle, which register is responsible for holding the instruction that has been fetched from memory?
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Which registers work together during the fetch-decode-execute cycle? (Select all that apply)
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The {{blank0}} and {{blank1}} work together to fetch data or instructions from memory.
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