Artificial intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to think, learn, and make decisions. It encompasses a wide range of technologies and approaches, including machine learning, natural language processing, computer vision, and robotics. AI systems can analyze complex data, recognize patterns, and perform tasks typically requiring human intelligence, such as problem-solving, understanding language, and making predictions. The goal of AI is to create machines that can perform functions autonomously, improve their performance over time through experience, and adapt to new inputs. AI applications are increasingly prevalent in various fields, such as healthcare, finance, transportation, and entertainment, driving innovation and enhancing efficiency across industries.