What Is an Arithmetic Unit?
The arithmetic unit, also called the arithmetic logic unit (ALU), is a component of the central processing unit (CPU). It is often referred to as the “engine” of the CPU because it allows the computer to perform mathematical calculations, such as addition, subtraction, and multiplication. The ALU also performs logic operations, like “AND,” “OR,” and “NOT.” The arithmetic unit works along with the register array, which holds data, when processing any of these operations. The arithmetic unit is comprised of many interconnected elements that are designed to perform specific tasks.
