Which task is primarily performed by the CPU?

The CPU, or Central Processing Unit, is often referred to as the brain of the computer because it performs the core functions required for processing data and executing instructions. Its primary role centers around calculations and data processing, which includes executing various operations and managing the flow of data within the system.

This involves arithmetic calculations, logical operations, and moving data from one place to another as dictated by program instructions. The CPU interprets and processes commands from software applications, making it essential for running programs effectively. This is why the choice related to calculations and data processing stands out as the task primarily performed by the CPU, differentiating it from other functions such as data storage or network management, which involve other components and systems in computing architecture.