Artificial Intelligence (AI) refers to the capability of a machine or computer system to perform tasks that would typically require human intelligence. This encompasses a range of functionalities, including understanding natural language, recognizing patterns, learning from experience, and making decisions. AI can be divided into two main categories: narrow AI, which is designed to perform a specific task (like facial recognition or language translation), and general AI, which aims to possess the ability to understand and reason across a variety of tasks similar to human cognitive abilities. Key technologies involved in AI include Machine Learning, neural networks, natural language processing, and robotics, among others. AI has applications spanning numerous fields, including healthcare, finance, transportation, and entertainment, and continues to evolve rapidly, raising important considerations around ethics and the future of work.