An embedded system is a combination of computer hardware and software designed for specific function or functions within a larger system.
The systems can be programmable or with fixed functionality. Industrial machines, consumer electronics, agricultural and process industry devices, automobiles, medical equipment, cameras, household appliances, airplanes, vending machines and toys, as well as mobile devices, are possible locations for an embedded system.
While embedded systems are computing systems, they can range from having no user interface (UI) -- for example, on devices in which the system is designed to perform a single task -- to complex graphical user interfaces(GUIs), such as in mobile devices. User interfaces can include buttons, LEDs and touchscreen sensing. Some systems use remote user interfaces as well.
