A stepper motor is a type of electric motor that divides a full rotation into a series of equal steps. This allows for precise control of the motor's position, making it ideal for applications that require accurate movement, such as in 3D printers and robotics. Stepper motors can be controlled by sending a series of electrical pulses, with each pulse moving the motor a specific angle. These motors are commonly used in various devices due to their reliability and ease of control. Unlike traditional motors, which continuously rotate, stepper motors can hold their position when not in motion, making them useful in applications like CNC machines and camera tripods.