26 Jul
2010
26 Jul
'10
4:57 p.m.
I have no idea if this will help, but a google search for "IEEE_SEND"
brings up three references including an MT-488 PDF Technical Reference.
Chuck Guzis wrote:
It doesn't correspond to anything that I can
identify, including a
PDP11. I'm hoping that some HP aficionado will save me the time of
plowing through a bunch of HP reference manuals trying to identify
this thing.
Again, it might not be HP at all, but the GPIB references may be a
clue.
26 Jul
26 Jul
5:46 p.m.
On 26 Jul 2010 at 16:57, Marvin Johnston wrote:
I have no idea if this will help, but a google search for "IEEE_SEND"
brings up three references including an MT-488 PDF Technical
Reference.
Thanks, but no--not even close. This beast is a 1979-era ATE system.
But that *is* a cute little handheld controller!
BTW, that Wavetek 172A function generator appears to still be a
popular item 30 years later. A quick price check shows that one can
expect to pay about $700 for one in good, calibrated condition.
--Chuck
7:57 p.m.
On 2010 Jul 26, at 5:46 PM, Chuck Guzis wrote:
Thanks, but no--not even close. This beast is a 1979-era ATE system.
Some searching for fairchild test systems brought up this for the
Fairchild Sentry system:
https://www.chiphistory.org/product_content/lm_fairchild_sentry
-400_1970_intro.htm
https://www.chiphistory.org/landmarks/lm_Fairchild_sentry-400_1970/
ip_fairchild_sentry-400_1970.htm
May not be of much help for your search, but interesting otherwise just
to see the processor used. Uses yet another one of those little-known
processors from the late-60s/early-70s when everybody decided they had
to make their own minicomputer - in this case the Fairchild FST-1 (or
is it something else re-badged?).
Good photo of the blinkenlight front panel in the brochure (2nd link
above).
Rather early for the specific system you are looking for, but it might
be the origins of it. 24-bit processor. There are some code snippets
there of Fairchild's "FACTOR" language ("Fairchild Algorithmic Compiler
- Tester Oriented") that bear some similarity to the snippet you
presented.
8:56 p.m.
On 26 Jul 2010 at 19:57, Brent Hilpert wrote:
Thanks, Brent! This may, in fact be the direct descendant of the FST-
1 (perhaps done in bit-slice?).
There's a mention of the FST-1 in connection with the origins of the
TENET 210 timesharing system:
http://www.certes.com/Tenet/
And Ed Thelen has a little bit more on the FST-1 on his site:
http://ed-thelen.org/comp-hist/Computer-Industry-Annual-71.html
From the little blurb on Factor, the sample I have (and
one other
scan of a listing page that the customer sent me) is certainly right.
So, right now, I'm trying to figure out the DOPSY filesystem. It
appears to be based on a 512 byte block, regardless of the actual
physical medium block size. Here's an excerpt of a directory:
000400 00 00 00 00 00 00 00 00-42 00 00 00 00 00 00 00
000410 49 44 49 41 47 20 20 20-43 00 22 02 00 9F 10 09
000420 4C 55 31 32 54 45 53 54-53 00 22 04 00 00 12 5D
000430 45 55 31 36 54 45 53 54-44 00 00 50 41 9F 10 11
000440 41 50 4F 57 45 52 20 20-45 00 22 03 43 9F 10 61
000450 38 41 54 41 42 41 53 45-46 00 02 02 44 9F 10 6D
000460 45 4C 44 43 20 20 20 20-47 00 00 52 45 9F 10 6F
000470 45 55 32 32 54 45 53 54-48 00 00 64 46 9F 10 C1
The layout seems to be 1 character, file type; 7 characters, file
name, 2 bytes ??, 2 bytes, starting block?, 4 bytes ??
The interesting thing is that all of the samples I have contain
nothing but compiled code--the small snippet of source code that I
found was obviously left over from something else.
Well, it's a start...
Many thanks,
Chuck
27 Jul
27 Jul
8:53 a.m.
On 07/26/2010 11:56 PM, Chuck Guzis wrote:
On 26 Jul 2010 at 19:57, Brent Hilpert wrote:
Thanks, Brent! This may, in fact be the direct descendant of the FST-
1 (perhaps done in bit-slice?).
There's a mention of the FST-1 in connection with the origins of the
TENET 210 timesharing system:
http://www.certes.com/Tenet/
And Ed Thelen has a little bit more on the FST-1 on his site:
http://ed-thelen.org/comp-hist/Computer-Industry-Annual-71.html
Ah, My memory was right. Back in the early 70s I work with a CM2100
and I was wondering if any survived. No one seems to have heard of
them (6700 bit slice 16bitter).
The Fairchild, Hazeltine had one, used it for bare board probe testing
for the 1500 series terminals. Had a fixed disk that was huge physically
though only maybe 10mb.
Allison
5170
days inactive
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ajp166＠verizon.net -
cclist＠sydex.com -
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marvin＠west.net