[Info-vax] Whither VMS?

Rich Alderson news at alderson.users.panix.com
Wed Sep 16 19:38:35 EDT 2009


billg999 at cs.uofs.edu (Bill Gunshannon) writes:

> So, now we are back to arguing what is OS and what is an application
> on top of the OS.  Is BASH part of the OS?  Is DCL?  I really don't
> think any "OS" has a "user" inteface.  They all have an API for which
> various user interfaces get written.

In the modern era, that's probably true, but it is not required that an OS
provide a separate shell/command processor.  The command processor in Tops-10
is an integral part of the monitor, running round-robin among the logged-in
jobs.

(No, Tops-10 does not have a fork/process model of computation.)

-- 
Rich Alderson                  "You get what anybody gets. You get a lifetime."
news at alderson.users.panix.com                           --Death, of the Endless



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