On 2024-05-28 1:23 p.m., John via cctalk wrote:
  So what, then, consitutes a Real Operating
System, and why? 
 I am grumpy about OS's like MSDOS, in that programs kept by passing
 DOS to handle screen, and serial IO.
 I also favor OS's that don't require one to build a file control block. 
Do you mean like MSDOS (later functions use file handles, not FCBs)?
Been like that since about DOS 2.0...
--Chuck
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