The following description of the present invention is mainly focused on a floppy disk drive, wherein {HEAD ~ data} is saved on {TAIL ~ a floppy disk} therein 
The following description of the present invention is mainly focused on a floppy disk drive , wherein { HEAD ~ data } is saved on { TAIL ~ a floppy disk } therein
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH