AI, or artificial intelligence, refers to the simulation of human intelligence processes by machines, particularly computer systems. These processes include learning, reasoning, problem-solving, perception, and language understanding. AI technologies enable machines to perform tasks that typically require human intelligence, such as visual perception, speech recognition, decision-making, and language translation. AI is utilized in various fields, including healthcare, finance, transportation, education, and entertainment, with the aim of enhancing efficiency, productivity, and innovation.