McKown, John wrote:
From what I've been told, that compatability "problem" is why FS (Future
System) did not take off as a replacement for the S/370. It eventually,
again from what I am told, became the AS/400 (iSeries). The i5/OS that
runs on the iSeries is simply amazing to me. We looked at it as a
possible replacement for z/OS. The z/OS "conversion" has been aborted by
the new CIO (nice man!). Not that we will necessarily stay on z/OS
"forever". But if we every get off of it, the plan now is because all
the functionality on it has been replaced with new systems on new
platform(s).
While FS was incompatible ... there were lots of other issues. It was
extremely ambitious with seemingly every blue-sky concept that ever
existed being thrown into the pot. At the time, I somewhat ungraciously
compared it to a cult film that had been playing continously down in
central sq for over a decade (as the inmates being in charge of the
institution). I also claimed that what I had running at the time was
"better" than what was described for resource management in the FS
architecture documents.
I believe the "nail" in the FS coffin was a study by the Houston Science
Center ... applications run on of a FS machine built out of the same
level technology as used in 370/195 ... would have thruput approximately
that of 370/145 (FS hardware complexity reduced thruput by over an order
of magnitude).
After the death of FS ... some number of people went off to Rochester
and created the s/38 that implemented some of the concepts from FS ...
as/400 cisc was the followon to s/38. later as/400 was ported from cisc
technology to power/pc technology. misc. collected posts on 801, romp,
rios, power/ps, etc
http://www.garlic.com/~lynn/subtopic.html#801
old post (in this n.g./mailing list) that has some quotes from another
source
http://www.garlic.com/~lynn/200f.html#16 FS - IBM Future System
as mentioned in the above ... a lot of FS was reaction to appearance of
plug-compatible controllers. recent posts mentioning working on
plug-compatible controller as undergraduate ... and subsequent article
that blaimed that project for the plug-compatible controller business
http://www.garlic.com/~lynn/2006m.html#25 Mainframe Limericks
http://www.garlic.com/~lynn/2006m.html#40 Microcomputers As A Space Spinoff
http://www.garlic.com/~lynn/2006m.html#41 Why Didn't The Cent Sign or
the Exlamation Mark Print?
past collected posts mentioning plug compatible controllers
http://www.garlic.com/~lynn/subtopic.html#360pcm
there is some folklore that the FS mantra/direction may have contributed
to Amdahl leaving to do (plug-compatible) high-performance 370 (processors)
past collected posts mentioning FS
http://www.garlic.com/~lynn/subtopic.html#futuresys
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