You probably have a computer at home. It’s the one that is shooting aliens down from the sky. What you may not be aware of are the other computers in your horne. You may have an auto-focus camera that uses a small computer to adjust locus and exposure. Or you could have a thermostat that is controlled by computer to provide heat at certain times of the day or to certain areas. However the most sophisticated computer you own is not on your desk or in your home, it’s on your car.
What makes this computer different trom your home PC is how it gets input. On your PC you provide input through the keyboard or mouse. On the car’s ECM, it receives input through multiple sensors located throughout the car. These sensors monitor almost every function of the car including; temperature, speed, luel mixture, timing, spark, braking, and much more.