providing a self {TAIL ~ contained apparatus} comprising a processor, {HEAD ~ a display}, and an array of inertial sensors, all operably connected 
providing a self { TAIL ~ contained apparatus } comprising a processor , { HEAD ~ a display } , and an array of inertial sensors , all operably connected
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH