The fairness of the bus is thereby increased by creating a mechanism for getting {TAIL ~ a “parked” device} off the data bus without {HEAD ~ the use} of another dedicated signal between physical components 
The fairness of the bus is thereby increased by creating a mechanism for getting { TAIL ~ a “ parked ” device } off the data bus without { HEAD ~ the use } of another dedicated signal between physical components
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH