Artificial intelligence (AI) refers to the branch of computer science that focuses on creating machines or software that can perform tasks which typically require human intelligence. This encompasses a variety of capabilities, including learning from experience (machine learning), reasoning and problem solving, understanding natural language, recognizing patterns, and making decisions. AI systems can be categorized into two main types: narrow AI, which is designed to handle specific tasks (like virtual assistants or recommendation systems), and general AI, which aims to replicate human cognitive abilities across a broad range of tasks. The field of AI combines elements of computer science, mathematics, psychology, neuroscience, and other disciplines, and is rapidly evolving with advancements in technology, data availability, and computational power. Its applications are seen in numerous sectors, including healthcare, finance, transportation, and entertainment, revolutionizing the way we interact with technology and shaping the future of various industries.