Autonomous machines are devices that can perform tasks without human intervention. They use advanced technologies like artificial intelligence and sensors to make decisions based on their environment. Examples include self-driving cars and robotic vacuum cleaners, which can navigate and operate independently. These machines are designed to improve efficiency and safety in various fields, such as manufacturing, agriculture, and transportation. By automating repetitive or dangerous tasks, autonomous machines can help reduce human error and increase productivity, making them valuable tools in modern society.