Apple DOS 3.1 disks use 13 sectors of data per track, each sector being 256 B. It uses 35 tracks per disk side, and can access only one side of the floppy disk, unless the user flipped the disk over.
Apple DOS 3.1 disks use 13 sectors of data per track being 256 B. It uses 35 tracks per disk side. It can access only one side of the floppy disk B. The user flipped the disk over. Track is each sector.