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Re: "Waterloo Tapes" in H390-VM group's Files area


 

Mark A. Stevens wrote:
Dave McGuire wrote:

I'm not certain, but I believe it was George Shedlock.

The original files can be found at:



I spent a lot of time trying to find them, and this is the best
source, for the tapes prior to this century.

This is also where Fish found them 5 years ago, according to
narchive.
Correct. And the files on my SoftDevLabs FTP site are EXACTLY IDENTICAL to the ones that Dave has on his site.

But they're not the same tape as the ones whose provenance I am trying to determine. They're not the same tapes.

The ones whose provenance I am trying to determine are the ones I mentioned in my original post: the ones YOU uploaded: the "Waterloo Tapes":

/g/h390-vm/files/Waterloo%20Tapes

The above "Waterloo Tapes" are COMPLETELY DIFFERENT from the ones on Dave's or my site. It is the "Waterloo Tapes" whose provenance I am trying to determine.

You even told me yourself in a private email they weren't the same!

"NOTE that these "VM Workshop" tapes are from the 1980s
and 1990s, and so most of that stuff may not work, or
would require significant effort to rewrite, to work
under VM/CE which is based on the 1970s vintage VM/370
Release 6, plus a few "local mods."

"Those Workshop tapes are expressly for VM/SP and VM/ESA.
The Waterloo tapes from the VM SHARE project from back
in the late 1970s and are for VM/370 Rel. 2, 3, 5 and 6."

You even reminded me that loading their contents onto a VM system required non-standard handling:

"HINT: (this can be important) -- on most, if not all, of
those Waterloo tapes, you do a TAPE LOAD * * from the first
file of the tape (under VM/CMS), and you get two files,
a file named ABSTRACT ABSTRACT A1, and PETAPE MODULE A1
(unless you tell it to load them on some other minidisk)."

"You must then use PETAPE instead of the normal VM CMS TAPE
command, because that was what was used to create those tapes.
PETAPE compressed the data on the tapes, somehow, or at least
used a better blocksize, versus the old CMS TAPE command."

And based on examining their contents, it does indeed look like they were created with a different command than the usual VM "TAPE" command. Each block of George's "VM Workshop" tapes (hosted on Dave's and my site) start with ".PLC" whereas each block on the "Waterloo" tapes start with ".CMS"

So we know they're completely different.

I am trying to determine the provenance of the WATERLOO tapes, *not* George's VM Share tapes.

Just wanted to make that clear to everyone.

Thanks.

--
"Fish" (David B. Trout)
Software Development Laboratories

mail: fish@...

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