From: Peter_Flass@Yahoo.com   
      
   One other thought on separate compilation.  This wasn't relevant to   
   older card/tape systems, but minis and micros originally had extremely   
   limited storage.  The typical editor either sucks the entire contents   
   of the file being edited into memory, or else edits block-by-block   
   like PDP-8 editors.  In either case, working with the entirety of a   
   large program is not particularly convienent, and separate compilation   
   lets you edit the program a logical piece at a time.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)