Embedded system

In some sense, every computer system is embedded within some larger system, such as a business. But the term in computer science and engineering has come to denote a computer that is physically embedded within a larger system and whose primary purpose is to maintain some property or relationship among the other components of the system in order to achieve the overall system objective. Embedded computers are now used in a wide variety of systems, such as aircraft, automobiles, appliances, weapons, medical devices, and toys.