An AI, or Artificial Intelligence, is a complex system designed to mimic human cognitive functions such as learning, problem-solving, and decision-making. It operates through algorithms and data processing, aiming to analyze vast amounts of information to derive insights, make predictions, or automate tasks. A hallmark of AI is its ability to adapt and improve over time as it interacts with more data and learns from its experiences, making it a powerful tool in fields ranging from healthcare and finance to transportation and entertainment.