Computers : On todays cars, computers do many different tasks. Everything from running the engine to safety and body systems, computers are all over your car. A computer on a car recieves inputs from sensors and switches and makes a logical decision for an output. Computers are usually vehicle specific and may require reprogramming. Vehicle systems that use computers include: engine, transmission, radio, gps, navigation, airbag, abs, traction control, body, air conditioner, stability control, electronic steering, power convertible top control, power windows, power locks, anti-theft system, keyless entry, smart key, immobolizer, power seats, memory position, lighting, and more.