In Artificial Intelligence, you study the relationship between an agent and its environment. Those agents have sensors that allow them to understand (sense) their settings. They also have actuators for acting on the environment. They have specified goals, and they can learn and use their knowledge to achieve their goals.
In artificial intelligence, an agent refers to any entity, whether it be a physical robot or a software program, that perceives its environment through sensors and acts upon that environment through actuators based on its goals. Agents are designed to operate autonomously, making decisions and taking actions to achieve their objectives. They can range from simple reactive systems that respond to immediate stimuli to complex, intelligent systems capable of learning and adapting over time. Overall, an agent in artificial intelligence embodies the core concept of an entity capable of perceiving and acting within its environment to achieve specific objectives or tasks.