Apple IIe - Page 174

174 Apple lie Users Handboo 'k
the protective envelope provides an area where the head can
read from or write to the diskette surface.
Illustration 5-2. Mini-Floppy Diskette
Floppy diskettes come in two sizes: 8 inch and 51/.i inch. The 51/.i
inch diskettes are also known as mini-floppy diskettes. Apple's
Disk 11 drives use mini-floppy diskettes.
Tracks and Sectors
To facilitate the process of searching for data on the diskette
surface, that surface is divided into tracks and sectors.
Tracks may
be visualized as a series of concentric circles on the
diskette surface, as shown in Illustration 5-3.