Embedded system

An embedded system is a special-purpose computer system planned to achieve a devoted function. Unlike a general-purpose computer, such as a personal computer, an embedded system perform one or a few pre-defined tasks, usually with very detailed supplies, and frequently includes task-specific hardware and automatic parts not typically found in a general-purpose computer. Since the system is devoted to exact tasks, design engineers can optimize it, dropping the size and cost of the produce. Embedded systems are often mass-produced, benefit from economy of scale.

Physically, embedded systems sort from portable devices such as digital watches and MP3 players, to large stationary installations like traffic lights, factory controller, or the system controlling nuclear power plants. In terms of intricacy embedded systems run from simple, with a single microcontroller chip, to very multifaceted with multiple units, peripherals and networks mount inside a large skeleton or field.