An initial program load of the computer is then attempted from {HEAD ~ the mass storage devices} in {TAIL ~ the order} specified utilizing the single user interface menu 
in
An initial program load of the computer is then attempted from { HEAD ~ the mass storage devices } in { TAIL ~ the order } specified utilizing the single user interface menu
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH