What is the main role of a CPU in a computer?

The main role of a CPU, or Central Processing Unit, in a computer is to execute instructions and process data. The CPU is often referred to as the “brain” of the computer because it performs the fundamental operations required to run programs and manage tasks. It interprets and executes the instructions from software applications and the operating system, coordinating the activities of all other hardware components within the system.

By performing calculations, making logical comparisons, and moving data between various memory locations, the CPU enables everything from simple computations to complex processing tasks. Understanding this role is essential, as it highlights the CPU’s critical function in overall system performance and responsiveness.