Artificial intelligence (AI) is a branch of computer science concerned with intelligent programs and machines. AI allows machines to learn from experience and perform human-like tasks through technologies like deep learning and natural language processing. Some applications of AI include healthcare, automation, robotics, banking, manufacturing, and retail. Key components of AI include search, pattern recognition, logic generation, common sense reasoning, learning from experience, and neural networks. However, the development and use of AI also raises ethical issues regarding exploitation, harm, and intellectual property.