processor and controller

A processor, often called the CPU, is the main brain of a computer that performs calculations and executes instructions to run programs. It processes data and directs other parts of the system to complete tasks. A controller, on the other hand, manages and coordinates the flow of data between different parts of the computer, such as managing memory and input/output devices. In essence, the processor handles the actual work of computing, while the controller organizes and directs how data moves and is used within the system to ensure everything runs smoothly.