The document provides an introduction to embedded systems including: 1) An embedded system is a microprocessor-based system incorporated into a device to monitor and control its components. Embedded systems perform predefined tasks with specific requirements. 2) Some of the earliest embedded systems include the Apollo Guidance Computer and the Autonetics D-17 guidance computer. 3) The document discusses the components of an embedded system including microcontrollers, resistors, capacitors and transistors. It provides examples of embedded systems like washing machines, camcorders and ATMs.