FIG 8 shows {TAIL ~ memory subsystem} 800, also labeled {HEAD ~ memory subsystem MSX} 
FIG 8 shows { TAIL ~ memory subsystem } 800 , also labeled { HEAD ~ memory subsystem MSX }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD