Sector 25 from the Root Directory (in 32 byte chunks) Sectors of a FAT12 disk (512 bytes/sector) 0 Boot FAT1 7 8 FAT2 15 16 R.Dir 23 24 31 32 Data 39 40 47 48 55 56 63 64 71 72 79 80 etc. 87 Sector 25 from the Root Directory (in 32 byte chunks) entry Directory entry 104 Flowers Filename jpg Extension 700 Size 5 First cluster #@$%^& Etc.

Sectors of a FAT12 disk (512 bytes/sector) Directory entry 104 Flowers Filename jpg Extension 700 Size 5 First cluster #@$%^& Etc. Byte Number 512 513 514 515 516 517 518 519 520 … Value 5 76 4095 45 2 FAT Entry # 1 3 4 12 bits Sector Sectors of a FAT12 disk (512 bytes/sector) 0 Boot FAT1 7 8 FAT2 15 16 R.Dir 23 24 31 32 Data 39 40 47 48 55 56 63 64 71 72 79 80 etc. 87