An embedded computer is a special-purpose computer that functions as a component in a larger product. Embedded computers are everywhere — at home, in your car, and at work. The following list identifies a variety of everyday products that contain embedded computers.
•Consumer Electronics: mobile and digital telephones, digital televisions, cameras, video recorders, DVD players and recorders,answering machines•Home Automation Devices: thermostats, sprinkling systems, security monitoring systems, appliances, lights
•Automobiles: antilock brakes, engine control modules, airbag controller, cruise control
•Process Controllers and Robotics: remote monitoring systems, power monitors, machine controllers, medical devices
•Computer Devices and Office Machines: keyboards, printers, faxes, copiers Because embedded computers are components in larger products, they usually are small and have limited hardware. These computers perform various functions, depending on the requirements of the product in which they reside. Embedded computers in printers, for example, monitor the amount of paper in the tray, check the ink or toner level, signal if a paper jam has occurred, and so on. Figure shows some of the many embedded computers
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