Artificial intelligence (AI) is defined as the ability of machines to mimic human thinking and behavior. The main goals of AI are to replicate human intelligence, solve knowledge-intensive tasks, and build machines that can perform human tasks like proving theorems, playing chess, or driving a car. Some advantages of AI include high accuracy, speed, and reliability. AI can also be useful in risky areas like defusing bombs or exploring oceans. However, disadvantages include the high costs of AI systems, an inability think outside programmed tasks, a lack of human emotions, and increasing dependency on machines over mental skills.