FAT File StructureFAT File Structure
  Disk Size, Cluster Size vs FAT Size 
  e.g. Disk Size = 1 Giga (230) bytes ( 1 sector = 512(29) bytes ) 
    Cluster Size 

      FAT12 : (212) clusters * (218) bytes/cluster (256K bytes/cluster) 
      FAT16 : (216) clusters * (214) bytes/cluster (16K bytes/cluster) 
      FAT32 : (232) clusters * (28) bytes/cluster - ?? 
      (218) clusters * (212) bytes/cluster (4K bytes/cluster) 
  FAT Size 
    FAT12 : (212) entry * 12 bits/entry = 3*(211) bytes = 6K bytes 
    FAT16 : (216) entry * 16 bits/entry = (218) bytes = 256K bytes 
    FAT32 : (218) entry * 32 bits/entry = (222) bytes = 4M bytes 

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