In developed countries, there are more than 30 embedded microprocessors per person, with close to 3 million funtions in embedded software. A great many of these embedded microprocessors become parts of automobile's Embedded Computer, and play a major role in the operation, maintenance, and performance of modern vehicles. It is important before beginning this discussion to define what a computer is. For the purpose of this discussion, we will define a computer to be an electronic, number-crunching device, which is difficult to repair with traditional tools. Based on this definition, the first true car computer was designed by Bosch in Germany, and implemented by Volkswagen in the Type 3 Fastback and Squareback. This major revolution brought on the advent of usable fuel injection, ended the need for carburetors, brought on the advent of catalytic converters, improved fuel economy drastically, and reduced harmful emissions.