Anne & Lynn Wheeler wrote:
the above article implies that 1360 saw limited deployment, in part
because of various follow-on magnetic related storage devices like
3850 (however, it doesn't mean that the senior engineers hadn't
originally anticipating that such devices might be attached to 360
channels).
3850 reference
http://en.wikipedia.org/wiki/IBM_3850
there is mention in the above that the tape cartridges originally were
to be directly addressed ... possibly also using BB specification
.... but it was eventually changed to the virtualized 3330
implementation. So there is possibility that 3850 originally was
envisioned as (also) being much more of a 2321 kind of operation
(having up to 4720 cartridges ... possibly also fitting into the BB
specification).
re:
http://www.garlic.com/~lynn/2007f.html#5 FBA rant
for other topic drift ... this post started out as a question about the
difference between 360/195 and 370/195 in comp.arch
http://www.garlic.com/~lynn/2007f.html#10 Beyond multicore
and it wanders off into mentioning 195 engineer that had worked on the "G"
cp67 updates. In this old email (in the above referenced post)
http://www.garlic.com/~lynn/2007f.html#email800117
it mentions that group getting hangshaied to help bail out the floundering
FS project ... and Vera Watson escaping to SJR (to work on system/r). The
195 engineer escaped to Boulder and I believe did some of the work on 3850.
this followon posts mentions some of the connections between various
efforts
http://www.garlic.com/~lynn/2007f.html#11 Is computer history taught now?
including some obscure connection between system/r, lisp and computer AI.
and a referenced footnote
http://www.mcjones.org/System_R/SQL_Reunion_95/sqlr95-Vera.html#fn2
on VM/370 modifications to support system/r development
[3] J.N. Gray and V. Watson. A Shared Segment and Inter-Process Communication
Facility for VM/370. IBM Research Report RJ1579. San Jose, California (May
1975).
now appears to have both authors lost; Vera on Anapurna and now Jim appears to
have
been lost at sea
http://www.garlic.com/~lynn/2007d.html#4 Jim Gray Is Missing
http://www.garlic.com/~lynn/2007d.html#6 Jim Gray Is Missing
http://www.garlic.com/~lynn/2007d.html#8 Jim Gray Is Missing
http://www.garlic.com/~lynn/2007d.html#17 Jim Gray Is Missing
http://www.garlic.com/~lynn/2007d.html#33 Jim Gray Is Missing
for other drift ... some engineers from endicott had come out to the science
center
http://www.garlic.com/~lynn/subtopic.html#545tech
for joint project to modify cp67 to provide 370 virtual machines ... including
support
for (unannounced) 370 virtual memory. These were the "H" updates to cp67. Then
came
the "I" updates to cp67 ... modifying the cp67 kernel to run in 370 virtual machine
(i.e. instead of in a 360/67 virtual machine or on real 360/67). The "cp67-i" system
was in regular operation a year before the first engineering 370 machine with virtual
memory support was even operational (and then, cp67-i for a long time was the only
operating system that ran on real 370 machines with virtual memory).
The cp67 "G" level updates (to provide virtual 4-way 370 smp support) were built ontop of the
cp67 "H" updates (providing 370 virtual machines). for other drift ... past posts
mentioning mutliprocessor support and/or compare&swap instruction
http://www.garlic.com/~lynn/subtopic.html#smp
The project for "L", "H", "I" (and "G") cp67 source updates ... also spawned
the CMS multi-level
source update process.
misc. past post mentioning project to do cp67 support for 370 virtual machines:
http://www.garlic.com/~lynn/2002h.html#50 crossreferenced program code listings
http://www.garlic.com/~lynn/2002j.html#0 HONE was .. Hercules and System/390 -
do we need it?
http://www.garlic.com/~lynn/2002j.html#70 hone acronym (cross post)
http://www.garlic.com/~lynn/2004.html#44 OT The First Mouse
http://www.garlic.com/~lynn/2004b.html#31 determining memory size
http://www.garlic.com/~lynn/2004d.html#74 DASD Architecture of the future
http://www.garlic.com/~lynn/2004h.html#27 Vintage computers are better than
modern crap !
http://www.garlic.com/~lynn/2004p.html#50 IBM 3614 and 3624 ATM's
http://www.garlic.com/~lynn/2005c.html#59 intel's Vanderpool and virtualization
in general
http://www.garlic.com/~lynn/2005d.html#58 Virtual Machine Hardware
http://www.garlic.com/~lynn/2005d.html#66 Virtual Machine Hardware
http://www.garlic.com/~lynn/2005g.html#17 DOS/360: Forty years
http://www.garlic.com/~lynn/2005h.html#18 Exceptions at basic block boundaries
http://www.garlic.com/~lynn/2005i.html#39 Behavior in undefined areas?
http://www.garlic.com/~lynn/2005j.html#50 virtual 360/67 support in cp67
http://www.garlic.com/~lynn/2005p.html#27 What ever happened to Tandem and
NonStop OS ?
http://www.garlic.com/~lynn/2005p.html#45 HASP/ASP JES/JES2/JES3
http://www.garlic.com/~lynn/2006.html#38 Is VIO mandatory?
http://www.garlic.com/~lynn/2006e.html#7 About TLB in lower-level caches
http://www.garlic.com/~lynn/2006f.html#5 3380-3390 Conversion - DISAPPOINTMENT
http://www.garlic.com/~lynn/2006l.html#21 Virtual Virtualizers
http://www.garlic.com/~lynn/2006m.html#26 Mainframe Limericks
http://www.garlic.com/~lynn/2006o.html#19 Source maintenance was Re: SEQUENCE
NUMBERS
http://www.garlic.com/~lynn/2006q.html#1 Materiel and graft
http://www.garlic.com/~lynn/2006q.html#45 Was FORTRAN buggy?
http://www.garlic.com/~lynn/2006q.html#49 Was FORTRAN buggy?
http://www.garlic.com/~lynn/2006w.html#3 IBM sues maker of Intel-based
Mainframe clones
http://www.garlic.com/~lynn/2007b.html#20 How many 36-bit Unix ports in the old
days?
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