> On Jul 6, 2017, at 5:53 PM, Alan Frisbie <flash...@flying-disk.com> wrote:
> 
> On 07/06/2017 02:01 PM, Paul Koning wrote:
>> 
>>> On Jul 6, 2017, at 4:20 PM, Alan Frisbie wrote:
>>> 
>>> ...
>>> TRAX was designed around a modified version of RSX-11M-Plus,
>>> v1.0, yet no mention of it survives today. Indeed, a year after
>>> its announcement, it appeared to have sunk without a trace.
>> 
>> I don't remember the exact timing, but my recollection is that
> > TRAX was cancelled within a few weeks of when it first shipped.
> 
> That's pretty fast to kill a product!   Do you have any idea what
> the reason was?   (Both the real reason and what was announced?)

No to both.  I only remember TRAX at all because I saw some of the manuals 
sitting around, nice binders with a picture of a fast train on the cover.  And 
I remember the special terminals built for TRAX (VT62).  But that was in the 
DEC office in Merrimack (MKO) which wasn't where TRAX or RSX development was 
done, so I wasn't close enough to where the action was to get more details.

> It seems to me that a product would have been a good match for
> the VAX, which was announced about the same time.   I wonder why
> that never happened?

VAX/TRAX, neat.  It may be that initially VMS wasn't all that efficient or 
responsive.  There were over the years a number of cases where VAXen were 
pushed by management into roles that customers didn't believe they were ready 
for.  Timesharing, for example -- DEC tried to kill RSTS several times, but it 
lived on much longer than they wanted.  (IAS was the first "RSTS killer", hah.) 
 And I still have an "RT32" button, part of an effort among some engineers to 
create a fast thin real-time OS for VAX, in the spirit of RT11.  Nothing came 
of that, though, apart from some unauthorized buttons.

        paul

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