Which part of the computer fetches the next instruction during the fetch-execute cycle
Question
Which part of the computer fetches the next instruction during the fetch-execute cycle?
Solution
The part of the computer that fetches the next instruction during the fetch-execute cycle is the Control Unit. The Control Unit is a component of the Central Processing Unit (CPU) and it manages the data flow within the system. Here are the steps it follows:
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Fetch: The Control Unit fetches the instruction from the memory. It uses the Program Counter to keep track of the memory address of the next instruction that needs to be fetched.
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Decode: Once the instruction is fetched, it needs to be decoded or interpreted. The Control Unit decodes the instruction to determine what action needs to be taken.
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Execute: After the instruction is decoded, the Control Unit sends signals to the appropriate part of the computer to execute the instruction.
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Store: Once the instruction is executed, the results are stored back in the memory.
This cycle repeats for each instruction until the program is complete.
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