From: marcov@stack.nl   
      
   On 2006-10-30, Robert Riebisch  wrote:   
   > Marco van de Voort schrieb:   
   >   
   >> The RTL does, but the RTL can be rewritten.   
   >   
   > I know, but it doesn't make sense to me. ;-)   
      
   What exactly doesn't make sense?   
      
   > There is another operating system (including a GUI and some drivers)   
   > from some people in Germany, but I lost the URL. And it was closed source.   
      
   Correct. I don't know any open _real ones_.   
      
   If you try to pinpoint the so called "OSes" down, they usually are more like   
   shells or even just applications (iow, command.com still ran).   
      
   I only heard about real OSes, never really got my hands on them.   
      
   What I remember from msgs in here and in Fido Pascal (both int and .028), I   
   would say some really existed, but only did GUI and I/O, mostly for machine   
   control and never wrote to HD (if they had any). Some used raw sector access   
   to floppy over BIOS int to retain their GUI settings.   
      
   Also a lot always has been said about flat real mode, but I never got the   
   feeling that any of the people that persisted really used that for their OS.   
   Stronger even, in retrospect I can't really really say I heard about flat   
   real mode apps that really went into production.   
      
   But I could have missed ones, specially in later years when my interest in   
   Dos (and TP for such applications) waned.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)