Servo motor is a highly specialized motor designed for precise control of rotary or linear motion. It's a rotational or translational motor that employs a feedback mechanism to ensure exact positioning, typically using a control signal that dictates the motor's movement to a desired position. Servo motor can be categorized into two main groups: AC Servo Motors and DC Servo Motors. AC Servo Motors are used in industrial applications where high precision and high power are needed. Typically requires sophisticated control systems and drives. DC Servo Motors are simplicity and cost-effectiveness. Often used in conjunction with a simpler control system.