This document discusses mechatronics and the transition from traditional mechanical systems to mechatronic systems. It explains that mechatronic systems integrate mechanical components with sensors, actuators, and microprocessors. This allows mechatronic systems to be more compact, have simplified and programmable movements, variable speed drives, electronic synchronization, and lighter structures compared to traditional systems. The accuracy of mechatronic systems is determined by feedback rather than mechanical tolerances. The document also describes four approaches to mechatronic design: replacing mechanisms, simplifying mechanisms, enhancing mechanisms with closed-loop control, and synthesizing new mechanisms.