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Date:	Sun, 30 Apr 2000 11:17:51 PST
From:	"Gregory W. Smith" <gsmith@well.com >
Reply-To:	scoug-programming@scoug.com
To:	< "scoug-programming@scoug.com" > scoug-programming@scoug.com >
Subject:	SCOUG-Programming: OS/2 as real-time OS ?

Content Type: text/plain

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On Sun, 30 Apr 2000 10:25:12 PST, Peter Skye wrote:
>At the last Programming SIG there was a brief mention that OS/2 is not a
>real-time operating system (hi Bob Blair). During the ensuing lunch,
>QNX was mentioned as an example of a real-time operating system (hi
>Terry Warren).
>
>I'd be interested in using some of the next SIG meeting's time for a
>discussion of what needs to be done to set up OS/2 for real-time usage.
>I see this more as a round-table discussion than a presentation.
>
>QNX is at
>
> http://www.qnx.com/
>
>For reference, apparently Linux is _not_ a real-time operating system:
>see
>
> http://wideopen.com/story/838.html
>
>- Peter

Linux has been hacked to serve as a real-time operating. There is a
lot of activity from a group at New Mexicao State University with
real-time Linux. In effect, they have written a real-time interrupt
layer that takes a higher priority than the regular Linux kernel. You
have to set aside additional memory blocks to act as buffers between
the real-time layer and the rest of Linux.

I understand that QNX is based on a real-time microkernel. It is
targeted at embeded systems and dedicated applications. For example,
the Netpliance system sold at Circuit City runx QNX. Also, QNX is
following the lead of Sun. The will offer (Real Soon Now) an
inexpensive CD or download version for developer evaluation. Just the
thing to go with my Solaris 7 for Intel CD-ROM.
===============================================================
Gregory W. Smith (WD9GAY) gsmith@well.com
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