CP/M as an RTOS (was Re: Dumb OS question)

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sat Apr 17 22:57:13 1999

<Which is not so much because CP/M or DOS actually is an RTOS (they aren't)
<but that they don't get in the way of the programmer. The programmer is
<free to write his own interrupt handlers, and even a task scheduler.
<
<Note that this very feature that makes such an OS potentially usable for
<real-time systems is exactly what makes them poor choices as platforms
<for general-purpose computing. Too much code gets written that works aroun
<the OS for no especially good reason.
<
<Note that a "proper" RTOS both doesn't get in the way, *and* provides
<useful real-time services.

Which some old timers to comp.os.cpm may remember the firestorm when
I called CP/M a file system and not an OS... ;)

Allison
Received on Sat Apr 17 1999 - 22:57:13 BST