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CPU Crossword Puzzle
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across: 2. A type of bus used to transfer command codes and return status signals between components of the CPU and external devices. 6. Numbers without decimal places 7. The type of bus used to set which memory address a CPU component is linked to for a read/write operation. 9. A register in which intermediate arithmetic and logic results are stored as calculations (addition, multiplication, shift, etc.) are carried out. 10. In this step the parts of the CPU are connected that are needed to execute the instruction that was decoded.
Down: 1. This step involves the CPU identifying the operation code (op-code) part of the instruction which tells it which operation to perform. 3. Small, very fast temporary memory locations built into the CPU 4. The register that stores the address of the instruction being executed. 5. Sets of tiny parallel wires that carry data between CPU components and between the CPU and external devices and RAM. 8. This CPU step involves retrieving an instruction from a memory address.
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