What is the brain of the computer that executes software instructions?

What is the brain of the computer that executes software instructions?

• A. RAM
• B. Hard Drive
• C. Central Processing Unit (CPU)
• D. Power Supply

Answer: (C)

The CPU is the part of the computer that runs programs. It carries out the fetch-decode-execute cycle: it fetches an instruction from memory, decodes what the instruction means, and then executes it, often using the arithmetic logic unit for calculations. The CPU also uses registers and the control unit to organize data and control the flow of operations so software can run smoothly. RAM stores the code and data the CPU is currently working with, while a hard drive keeps information long-term, and the power supply simply provides electricity without processing data.

The CPU is the part of the computer that runs programs. It carries out the fetch-decode-execute cycle: it fetches an instruction from memory, decodes what the instruction means, and then executes it, often using the arithmetic logic unit for calculations. The CPU also uses registers and the control unit to organize data and control the flow of operations so software can run smoothly. RAM stores the code and data the CPU is currently working with, while a hard drive keeps information long-term, and the power supply simply provides electricity without processing data.