Roboticists develop robotic devices that can move autonomously and be programmed to behave in certain ways. Robots are considered intelligent if they can safely interact with unstructured environments while achieving specified tasks. The word robotics was first used in a 1942 Isaac Asimov short story and he explored ideas like robotherapists. Asimov also established three laws of robotics concerning not allowing or causing harm to humans. There are different types of robots including mobile, rolling, walking, stationary, autonomous, and remote-controlled robots that can have various purposes like exploration, manual labor, or controlled tasks.