The document discusses the definition, history, current status, challenges, and future of artificial intelligence. It defines AI as intelligence demonstrated by machines as opposed to humans. Some examples of current AI applications mentioned include search engines, recommendation systems, speech recognition, self-driving cars, and game playing. The document also discusses early developments in AI research and the rise of deep learning. It outlines challenges for AI such as limited knowledge and data privacy issues. The future implications of AI on employment and whether machines may become superintelligent are also examined.