Literature Review This section focuses on the review of literature on servo motors and DC motors, in general as well as in the context of the current research project. The chapter begins with the introduction of servo and DC motors, followed by their usage in the current study. Lastly, the chapter ends with a conclusion of the use of Servo and DC motors in the current work. Introduction Servo motors and DC motors Motors have been by far one of the most crucial components across the factory front. Being the largest consumers of power, the accuracy in motor control is the easiest measure of minimizing energy consumption. Electric motors are generally categorized in terms of their functions as servo meters, gear motors, and so on, as well as by their electrical specifications as Alternating current (AC) and Direct current (DC) motors. While DC motors are given more preference mainly in the variable seed applications, increasing use of AC motors is seen before enhancements in solid-state elements. In this context, the servo motor is a mechanism that is aimed at positioning and controlling speed in the systems called closed-loop control. The current project makes use of a servo meter to turn over a wide range of speed instructions obtained from the computer. In general, DC and AC servo meters are primarily found in applications depending on their machine structure. DC servo motors have been applied in computers, robotics, numerical control machines, industrial components, speed control of vehicles and alternators, control mechanism purposes, and so forth. Further, the field of control of mechanical linkages as well as robots sees the most potential use and research works of DC motors [1]. On the other hand, servo motors are extensively equipped for applications relating to radio-controlled models, such as cars, planes, robotics, test equipment, industrial automation, etc. Although a servo is not easily defined nor is self-explanatory as its mechanism does not apply to any particular device or machine. Typically, it is a term that applies to a task or a function. Any electric motor works on the principle of electromagnetism, as aforesaid. Any conductor that carries current creates a cloud of the uniform magnetic field. This conductor is directed at experiencing a magnetic force when it is subjected to an external magnetic field. It should be mentioned that its strength is totally dependent on the current across the conductor, as well as the magnetic power of the field. The inner composition of a simple DC motor is so designed in order to facilitate harnessing of the magnetic interaction taking place between the conductor and an outside magnetic field for developing uniform rotational motion [2] [5]. DC motors are broadly utilized in robotics due to their smaller size and greater energy output. Experts suggest that DC motors, by far, have been a better option for generating power for wheels of a robotic car as well as for other similar mechanical constructions. DC motor speeds are easily varied hence they are commonly used in applications where there are speed control, servo control, as well as for positioning needs. A servo motor can be either AC or DC, and typically constitutes the drive section and the encoder. Moreover, a servo motor operates more smo