The extent to which a robot can move itself; expressed in terms of Cartesian coordinates (x, y, and z) and angular movements (yaw, pitch, and roll). As an example, the sum of the number of movable and semi-movable joints in the human body equates to a total of 230 degrees of freedom.
A semiconductor device with two terminals which only allows current to flow through it in one direction. Diodes have properties of forward and reverse bias which determines the direction in which electricity can flow through their semiconductor.