Robotics is the science and technology of robots, which deals with their design, manufacture and application Robotics requires a working knowledge of electronics, mechanics and software and is usually accompanied by a large working knowledge of many subjects.
The structure of a robot is usually mechanical and can be called a kinematics chain (its functionality being’ similar to the skeleton of the human body). The chain is formed of links (its bones), actuators (its muscles) and joints, which can allow one or more degrees of freedom.
Most of the contemporary robots use open serial chains in which each link connects the one before to the one after it. These robots are called serial robots and of resemble the human arm. However, the development and use of such strollers in robots is an active area of research.