Heath, Steve (2003). Embedded systems design. EDN series for design engineers (2 ed.). Newnes. p. 2. ISBN978-0-7506-5546-0. An embedded system is a microprocessor based system that is built to control a function or a range of functions.
Michael Barr; Anthony J. Massa (2006)."Introduction" Programming embedded systems: with C and GNU development tools. O'Reilly. pp. 1–2. ISBN978-0-596-00983-0.