Artificial intelligence (AI) is the ability of machines to mimic human intelligence through learning, reasoning and interacting with their environments. The document discusses the history and definitions of AI, types of AI including narrow, general and super AI, how AI works using artificial neural networks and algorithms, benefits like reducing human risk but also drawbacks like costs and job disruption. Examples of AI in use include predictive search in Google, personalized recommendations in Netflix using viewing history, and spam filtering in Gmail's inbox.