Artificial Intelligence (AI) is the simulation of human intelligence in machines, enabling them to perform tasks that typically require human cognition, such as learning, reasoning, problem-solving, and decision-making. AI systems can analyze data, recognize patterns, and improve over time using techniques like machine learning and deep learning. From chatbots and recommendation algorithms to autonomous vehicles and medical diagnostics, AI is transforming industries and everyday life. While AI offers significant benefits, it also raises ethical concerns about bias, privacy, and job displacement, making responsible development and regulation crucial.