Preferred embodiments of the invention utilize semiconductor memory technology in {HEAD ~ order} to implement {TAIL ~ the memory devices} 
to implement
Preferred embodiments of the invention utilize semiconductor memory technology in { HEAD ~ order } to implement { TAIL ~ the memory devices }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL