Main File Library: 1 directory
Commodore: 45 directories
FreeBSD: 45 directories
Linux: 44 directories
Microsoft Windows: 128 directories
OS2: 51 directories
Trs-80 Color Computer: 67 directories
Unix: 41 directories
CD Night Owl 12: 63 directories
CD Night Owl 13: 63 directories
CD Night Owl 14: 63 directories
CD Night Owl 15: 64 directories
CD Night Owl 16: 65 directories
CD Night Owl 17: 64 directories
CD Night Owl 18: 64 directories
CD Night Owl 19: 64 directories
CD Night Owl 20: 64 directories
CD Night Owl 21: 65 directories
CD Night Owl 22: 65 directories