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 in a computer system!
Which register holds the address of the next instruction to be executed?
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Which of the following are roles of registers in the CPU? (Select all that apply)
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The {{blank0}} register holds the actual data being transferred to or from memory, while the {{blank1}} register holds the location of the memory address being accessed.
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Match the items on the left with their correct pairs on the right
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If the Program Counter (PC) starts at 0010 in binary and increments by 1, what is the new value?
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Match the items on the left with their correct pairs on the right
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Match the items on the left with their correct pairs on the right
What is the main benefit of using registers in the CPU?
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Which registers are involved during the fetch phase of the fetch-decode-execute cycle? (Select all that apply)
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The {{blank0}} register is incremented automatically to point to the next instruction, ensuring smooth execution of the program.
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