AI (Artificial Intelligence) refers to the development of computer systems that can perform tasks typically requiring human intelligence. These tasks include understanding natural language, recognizing patterns, solving problems, and making decisions. AI can be found in various applications, such as virtual assistants, recommendation systems, and autonomous vehicles. There are different types of AI, including narrow AI, which is designed for specific tasks, and general AI, which aims to perform any intellectual task a human can do. AI technologies often rely on machine learning, where systems learn from data to improve their performance over time.