Cerebrix is Chip's robot. Like his master, Cerebrix is more of a thought focused character rather than feeling. Bipedal, with no arms, he is equipped with advanced memory, sensory, computing and processing systems stored in his "large head". He can also fly by means of a retractable propeller stored in an upper compartment of his head. His main functions include a huge sensory array and he is also equipped with two antennae through which he can tap into almost any communication wavelength and cause disturbances, creating confusion in his foes. Also his advanced probability computing system is capable of determining the outcomes of events before they occur. His personality and speech are much more machine-like but what he has to say is usually very important.

(from wikipedia)