Which component is primarily responsible for executing instructions in a computer?

The component primarily responsible for executing instructions in a computer is the CPU, or Central Processing Unit. The CPU functions as the brain of the computer, carrying out commands from programs by performing basic arithmetic, logic, control, and input/output operations specified by the instructions.

Each instruction is processed in a sequence that involves fetching the instruction from memory, decoding it to understand what action is required, and executing it. This cycle allows the CPU to perform tasks and run applications. Its architecture is designed for high-speed processing, making it essential for overall system performance.

In contrast, RAM (Random Access Memory) serves as temporary storage that holds data and instructions that the CPU needs while performing tasks but does not execute instructions itself. The motherboard is a crucial circuit board that connects various components of the computer but does not execute the instructions. The power supply provides the electrical energy required for the operation of all hardware components, but it also does not have any role in executing instructions. Understanding the distinct roles of these components clarifies why the CPU is the central figure in instruction execution within a computer system.