This document discusses the history and types of robots. It notes that the term "robotics" was first used by Karel Capek in the 1920s to describe artificial workers. Isaac Asimov later proposed three laws of robotics to ensure robots do not harm humans. The first industrial robot was Unimate, which was installed in a GM plant in the 1960s to perform dangerous jobs. The document then describes the main components of industrial robots like sensors, effectors, actuators, controllers, and arms. It also discusses different types of robots including mobile, stationary, autonomous, and virtual robots.