Robotic arms are mechanical devices designed to mimic the movements of a human arm. They consist of joints and links that allow for a range of motion, enabling them to perform tasks such as lifting, moving, and assembling objects. These arms are commonly used in industries like manufacturing, where they can increase efficiency and precision in tasks like welding and painting. The technology behind robotic arms often includes sensors and actuators, which help them respond to their environment. They can be programmed to perform repetitive tasks, making them valuable in settings such as automotive assembly lines and electronics production.