Artificial Intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to mimic human cognition, such as learning, problem-solving, reasoning, and decision-making. It involves the development of algorithms and computer programs that can analyze data, recognize patterns, and make predictions or decisions based on that data. AI applications can be found in many areas, including natural language processing, speech recognition, image and video analysis, robotics, and self-driving cars, among others. The ultimate goal of AI is to create intelligent machines that can perform tasks and make decisions without human intervention or guidance.