robot is a machine —especially one programmable by a computer — capable of carrying out a complex series of actions automatically. [2] Robots can be guided by an external control device or the control may be embedded within. Robots may be constructed on the lines of human form , but most robots are machines designed to perform a task with no regard to their aesthetics. robot is a machine —especially one programmable by a computer — capable of carrying out a complex series of actions automatically. [2] Robots can be guided by an external control device or the control may be embedded within. Robots may be constructed on the lines of human form , but most robots are machines designed to perform a task with no regard to their aesthetics.