Which of these tasks can a CPU perform?

The CPU, or Central Processing Unit, is often referred to as the "brain" of the computer because it is primarily responsible for executing instructions and processing data. This includes performing calculations, executing programs, and managing the flow of data in and out of other components within the computer system. By processing thousands to millions of instructions per second, the CPU can efficiently handle tasks as requested by software applications, making it essential for the operation of a computer.

The other tasks listed involve functions that are not primarily managed by the CPU. For instance, running an internet browser relies on the CPU but is also dependent on other components like RAM and the operating system to function smoothly. Storing files permanently is a function of storage devices such as hard drives or SSDs, while generating power involves the power supply unit (PSU). These roles are distinct from the CPU's primary function of processing instructions and managing data flow.