Just imagine a car driving by itself without the help of anyone. Self-driving cars are robot cars that can think about and decide how to reach the destination. The passenger only needs to specify the destination, and the robot car will take you to the destination safely. To convert an ordinary car into a robotic car, we should add some robotic sensors to it. We know that for a robot, there should be at least three important capabilities. It should be able to sense, plan, and act. Self-driving cars satisfy all these requirements. We'll discuss all the components we need for building a self-driving car. Before discussing the building of self-driving car, let's go through some milestones in self-driving car development.