Here is some further information on the subject.

8.3
From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/8.3

File Allocation Table
http://en.wikipedia.org/wiki/File_Allocation_Table
 
Not directly related to your request but further information on file systems
 

NTFS
http://en.wikipedia.org/wiki/NTFS
 
How NTFS Reserves Space for its Master File Table (MFT)
http://support.microsoft.com/kb/174619
 
Master File Table
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/master_file_table.asp

Files Excluded by the Disk Defragmenter Tool
http://support.microsoft.com/kb/227350
 
How to create and manipulate NTFS junction points
http://support.microsoft.com/kb/205524