Artificial intelligence (AI) is the simulation of human intelligence in machines that are programmed to think and act like humans. AI is a broad field that encompasses many different technologies and approaches, including machine learning, natural language processing, and computer vision. The goal of AI is to develop machines that are able to perform tasks that typically require human intelligence, such as learning, problem-solving, and decision-making. AI is used in a wide range of applications, including personal assistants, medical diagnosis, and autonomous vehicles. It is a rapidly-growing field that has the potential to revolutionize many industries and has raised significant ethical and societal concerns.