Tandy 1200 HD User Manual page 161

APPENDIX D
Storage Media
Your computer uses two types of storage media - the diskette and
the fixed disk.
THE DISKETTE
The square protective jacket of the diskette encloses a disk made of
materials very similar to those used in conventional recording tape.
The protective jacket helps to keep the recording disk clean and free
from scratches. The head slots in the jacket enable the recording
heads to come into contact with the magnetic coating on the disk.
SECTOR
TRACK
TRACK
0
19
1
0 [) -
WRITE PROTECT
NOTCH
WRITE
TAB
-
PROTECT
D -
1