Artificial intelligence (AI) is a field of computer science focused on creating systems that can perform tasks typically requiring human intelligence, such as learning, problem-solving, perception, reasoning, and decision-making. By processing vast amounts of data and recognizing patterns, AI enables machines to understand spoken and written language, analyze information, make recommendations, and even drive cars. Key subfields of AI include machine learning and deep learning, which allow systems to learn from experience and adapt to new inputs without explicit programming.