Artificial intelligence (AI) is a branch of computer science focused on creating systems and technologies that can perform tasks that typically require human intelligence. This includes capabilities such as learning, reasoning, problem-solving, perception, language understanding, and decision-making. AI systems are designed to analyze large amounts of data, recognize patterns, and make predictions or suggestions based on that information. There are two main types of AI: narrow AI, which is specialized for a specific task (such as voice recognition or picture classification), and general AI, which aims to perform any intellectual task that a human can do, although true general AI remains largely theoretical at this point. AI technologies include machine learning, deep learning, natural language processing, and robotics, and they are applied in diverse fields like healthcare, finance, transportation, and entertainment, among others.