power on resuming means for returning {HEAD ~ the data} held in the hard disk to {TAIL ~ the first storing means} 
to
power on resuming means for returning { HEAD ~ the data } held in the hard disk to { TAIL ~ the first storing means }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL