CPU fetches the instruction from memory according to the value of the:
Correct answer: A. A) Program counter.
- A. A) Program counter.
- B. Status register:
- C. C) Instruction register:
- D. D) MBR (Memory Buffer Register):
Explanation
Here's why the other options are incorrect. The program counter (PC) keeps track of the memory address of the next instruction to be fetched by the CPU. It is like a pointer that tells the CPU where to go in memory to find the next instruction to execute. As the CPU executes instructions, the program counter is incremented to point to the next instruction in the program sequence.:
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Hardware includes the physical components of a computer, such as the CPU, motherboard, registers, memory, storage devices and peripheral equipment. Software covers system software, application software, utilities, drivers and firmware, with attention to how the operating system manages hardware and how software differs from the physical equipment it controls.
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