This document provides an introduction to robotics, including definitions, components, and applications of robots. It defines a robot as a machine controlled by a computer that is built to perform tasks. The key components of a robot are its body, actuators, sensors, effectors, controller and software. Actuators are the "muscles" that apply forces, sensors provide feedback to the controller, and effectors convert commands into physical motion. Robots are used in a variety of industries for tasks that are dangerous, repetitive, or menial for humans. The future of robotics includes advancements in artificial intelligence, autonomy, humanoid design, and establishing ethics laws to ensure robots do not harm humanity.