What is the function of the CPU?

• A. To store data permanently
• B. To process instructions and manage operations
• C. To connect different hardware parts
• D. To control the power supply

Answer: (B)

The function of the CPU, or Central Processing Unit, is to process instructions and manage operations within a computer. It is often referred to as the "brain" of the computer because it executes commands from programs, performs calculations, and handles data manipulation. The CPU interprets and carries out the basic instructions that operate a computer, coordinating the activities of all other components.

When a program is run, the CPU retrieves instructions from memory, processes them, and sends signals to other parts of the computer to execute tasks. This includes arithmetic operations, logic operations, and managing data flow between memory and input/output devices. Essentially, the CPU is responsible for transforming input into output, making it central to the functioning of the computer system.

Other functions, such as storing data permanently or controlling the power supply, are handled by other components like hard drives and power supply units, while connection between hardware parts is typically managed by motherboards and buses within the system architecture. Therefore, processing instructions and managing operations is the core responsibility of the CPU in the overall functioning of a computer.