Autonomous agents are systems or machines that can perform tasks without human intervention. They use algorithms and artificial intelligence to make decisions based on their environment and objectives. Examples include self-driving cars and robotic vacuum cleaners, which can navigate and operate independently. These agents can learn from their experiences and adapt to new situations, improving their performance over time. They are often used in various fields, such as robotics, drone technology, and smart home devices, to enhance efficiency and reduce the need for manual control.