The CPU (central processing unit) performs operations on data, including addition. Addition is a basic arithmetic operation that involves adding two or more numbers together. The CPU can perform addition quickly and accurately, making it an essential component of many computer programs and applications. In addition, the CPU can perform complex mathematical operations that involve addition, such as calculus, physics simulations, and financial modeling. The ability to perform addition quickly and accurately is important for many tasks, from data entry and analysis to gaming and video editing.