text: Sensors on the self driving cars have started in the 1980's automakers made speed sensors for the antilock brakes. Within 10 years the sensors had become more advanced to detect and respondto the danger of out-of-control skids or rollovers. The information from the sensors can cause the car to apply brakes on individual wheels and reduce power from the engine , allowing far better response and control than a human driver could manage alone. All the improvments to computer software and hardware is making driving safer and leading to cars that can handle more and more driving tasks on their own.