What is the main responsibility of the Central Processing Unit (CPU)?

The main responsibility of the Central Processing Unit (CPU) is to perform program control and data processing. The CPU is often referred to as the "brain" of a computer because it executes the instructions of a computer program, processes data, and manages the flow of information through the system. It interprets and carries out commands from software, controlling both the arithmetic and logic operations necessary for computations and decision-making processes within the program.

While other components of a computer are responsible for storing data, managing network connections, or generating graphics, the CPU’s primary role is to ensure that the entire system operates according to the instructions contained in software programs. This makes it crucial for the overall functionality and performance of any computational task.