This document provides an overview of artificial intelligence (AI), including its history, types, impact, examples and applications. It begins with definitions of AI and discusses its evolution since the 1950s. The types of AI are described as reactive, limited memory, theory of mind and self-aware. The impact and examples of AI are then summarized, covering increased efficiency, job changes, improved decision making and applications in healthcare, transportation and more. Finally, specific applications of AI are outlined in fields like astronomy, gaming, finance, data security and more.