I?ve been tinkering around with my IBM Mainframe terminals and I?m pretty close to having everything the way that I want it.
I currently have an IBM 3174-61R Establishment controller connecting to my ?mainframes? via TCP/IP. This allows me to not only connect to my Multiprise 3000 S/390 but also some PCs running Hercules to allow me to run older versions of the mainframe OS?s. I currently have 3 IBM 3179 terminals hooked up.
I?ve upgraded the 3174 to be able to boot from a hard disk (it was a supported option). I actually purchased the upgrade from a reputable vendor but after many attempts we could not actually get it to do anything useful. I learned about DavidG?s MFM emulator and that?s now installed in the 3174 which happily boots from it. I still have to figure out a permanent mount for it since the standard 3174 HDD mounts don?t work for the MFM emulator board.
One of the last things that I wanted to figure out was how to support multiple sessions. I had configured the 3174 to support multiple sessions on each terminal but following the documentation, I could never figure out how to actually switch between the sessions. Well today I managed to do that. Success! I finally figured out the key sequence for switching sessions. It doesn?t match the IBM documentation. It?s not clear to me if that?s because I haven?t configured something properly on the 3174 or if there?s some other reason behind it.
Since I also have the AEA feature that allows me to connect ASCII terminals to the 3174, my next project will be to hook up a couple of the terminals that?re deemed ?compatible? (VT100, ADM5 are on the list) and see how that works. But that also involves navigating the 3174 configuration process which is opaque to say the least (there are configuration screens but you need a manual because the fields only have numbers (e.g. 721) to identify them and no other indication as to how they need to be filled in).
Oh, the other bizarre thing about the 3174 that?s been configured with TCP/IP is that I can also connect to ?unix? servers with the 3174?s (and the ASCII terminals too). It?ll be interesting to see how that works on a CUT mode terminal. ;-)
TTFN - Guy
ok we have this
In the PS/2 days there where suitcase size machines with plasma displays
but they only had a single diskette drive that folded out of the front,
we also have the dual disc laptop 1st thing IBM made with lcd
then we also have a one that is like a suitcase compaq portable that
made compaq famous
ok thinks for it all being non scsi!
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 12/18/2015 1:15:22 P.M. US Mountain Standard Time,
ggs at shiresoft.com writes:
> On Dec 18, 2015, at 12:03 PM, Paul Berger <phb.hfx at gmail.com> wrote:
>
>>
> The screen on the convertable is not plasma, it is a LCD screen and
there where two versions one reflective and the other backlit. In the PS/2
days there where suitcase size machines with plasma displays but they only had
a single diskette drive that folded out of the front, one model is the
8573-P70. There where 386 and 486 versions of these machines with
microchannel card slots and a SCSI disk.
>
Again, no. They did not ship with a SCSI disk. They used the same disks
as were in the model 50 & 70 (which were *not* SCSI).
A number of us at IBM (who worked on the SCSI cards spock & tribble) did
fit the card (usually spock because it had 512KB of cache) and an IBM 320MB
SCSI drive in the P70. It was *not* a standard (ie orderable)
configuration but at the time created a wicked machine!
TTFN - Guy
Looking for some Fluke Micro System Troubleshooter stuff:
Looking for the following key caps: AUTO, BUS, RAM SHORT, and C
Bonus key caps (not needed, but better ones would be nice): RAM LONG,
I/O, 1, 2
Also looking for PODS for:
6502
Z80
6809
8080
If you have any of these available, please let me know what you have
and a price.
Thanks,
-- Curt
> From: Doug Ingraham
> I regret that when I obtained my Straight 8 system in the early 80's I
> chose not to take the ASR-35.
> ...
> A glass terminal is not the same experience as a teletype.
Thank goodness for that! I had the 'joy' of using exclusively Teletypes for
the first two years I worked with computers, and I didn't (and still don't)
miss them one bit!
Which is not to say I look down on those who collect/restore them, I
understand they are an important part of the history, and I salute those who
are into them. I'm just saying that, as a user, I was glad to move on!
Noel
Folks,
I'm still probing the alleged "parallel ASCII" interface that was
supposedly fitted to my 'Western I/O' converted IBM 2970 Selectric.
Here's where we're at:
http://corestore.org/2970pins.jpg
I've traced the pins from the DB25 connector back to the board; the
ribbon cable in the above pic is straight-through to the DB25. It
doesn't resemble any interface with which I'm familiar, and I can't
see how it can possibly be parallel. Only the following pins (these
are the DB25 pin numbers remember) connect to any pins or devices on
the interface board: 9, 10, 11, 13, 17, 19, 21, 22, 23, 24.
All other pins are either unconnected, or ground.
Of the above 10 pins, 11, 13, 22 & 23 are high at power-up (printer
NOT connected to any interface). The only pin with known function is
19, which is 'paper out'; if I toggle the paper out switch I can see
it going high and low.
There is no frigging way that can be a conventional 8-bit parallel
interface, obviously, with only 10 pins in use, and 4 or 5 of them
(depending on paper out) high on power-up - obviously signaling
something. Whatever it is, most of the pins are driven by an IC - an
Allen Bradley 314B102. Google has nothing, except a few for sale. No
datasheet anywhere I can find.
Can anyone give me a clue as to the purpose and pinouts of an Allen
Bradley 314B102??!!
Here's the component side of the driver board, the interface and
314B102 bottom right:
http://corestore.org/2970driver.jpg
Help? Please? Anyone out there with old reference material? Anyone
make a stab at what the hell this interface might be??? Maybe, maybe,
it's some kind of custom 'internal' interface and was intended to be
used with a (missing) external converter box/cable that made a
standard parallel interface of it??
Mike
http://www.corestore.org
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'
> From: Chuck Guzis
> It's also occurred to me that without screens, we might be better off
> today ... The average web-surfing experience blasts the user with tons
> of filigree and useless data, but very little useful information. ...
> Web sites that have multi-megabyte splash screens that serve no purpose
> other than tell you that you've arrived.
Agree completely. The amount of useless 'eye candy' on the average Web page
is, well, appalling. But then again, the low S/N on developing technologies,
as worthless content expands faster than high quality - well, that's nothing
new, look at TV.
> (oh boy, am I going to get flack on this one)
Not so much! Most seem to agree, actually! :-)
> Data is cheap and Parkinson's law applies.
"90% of _everything_ is crap!"
Noel
OK Yea they were odd inside we have tower here.. think it is a 70
and a 17" or 19 inch MONSTER ibm monitor ( alas B/W).
Years and Years ago someone dumped a bunch at a thrift shop.. lots of
them!
neat here I wish I had kept more of them... I kept the tower and let
the desk tops go you see seldom any of these around here. We also
kept a LAPTOP IBM with dual floppies and a odd plasma screen all in one IBM
computer...
and we have an IBM that is like the Compaq Portable and of course a
first PC ( where do I get Charlie Chapman look-a-like to have next to
it!?)
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 12/18/2015 12:08:25 A.M. US Mountain Standard Tim,
ggs at shiresoft.com writes:
No they weren't SCSI. Those were only through either a
"spock" or "tribble" MCA card. Those were the code names.
I have *no* idea what the "real" IBM designation was. ;-)
The desktop PS/2 machines (50, 50Z, 70, etc) were all
designed with robotic assembly in mind (that's why there
are no screws or cables in those machines). To accomplish
that the HDD was a non-standard connector.
TTFN - Guy
On 12/17/15 10:30 PM, COURYHOUSE at aol.com wrote:
> did all mod 70s have SCSI drives?
>
> Ed#
>
>
> In a message dated 12/17/2015 10:54:50 P.M. US Mountain Standard Tim,
> mokuba at gmail.com writes:
>
> I never saw this post, but did end up with a 30MB. I will take another
if
> available though.
>
> On Sat, Mar 21, 2015 at 1:27 PM, Daniel Snyder
<ddsnyder at zoominternet.net>
> wrote:
>
>> Still looking?
>> ----- Original Message ----- From: "Gary Sparkes" <mokuba at gmail.com>
>> To: "General Discussion: On-Topic and Off-Topic Posts" <
>> cctalk at classiccmp.org>; <unallocated-space at googlegroups.com>; "
>> Blabber at hacdc.org" <blabber at hacdc.org>; "HacDC Members Discussion
List" <
>> members at hacdc.org>
>> Sent: Monday, February 16, 2015 9:31 PM
>> Subject: IBM PS/2 Model 70 HARD DRIVE NEEDED
>>
>>
>>
>> Got a hard down situation and need to re-install/recreate the BBS
system
> I
>>> had running.
>>>
>>> HDD makes swishy noises when shaken, haven't tried stirring yet.
>>>
>>> I /guess/ a bootable MCA SCSI card would work too... ;)
>>>
>>> I had the 160MB drive, but anything above 30 would work - i guess i'll
>>> just
>>> have to use a SCSI Drive for the file storage area once i get an MCA
> SCSI
>>> card ....
>>>
>>> --
>>> Gary G. Sparkes Jr.
>>> KB3HAG
>>>
>>
>
> --
> Gary G. Sparkes Jr.
> KB3HAG
>
Did the email server fall over again?
--
--- Dave Woyciesjes
--- ICQ# 905818
--- CompTIA A+ Certified IT Tech -http://certification.comptia.org/
--- HDI Certified Support Center Analyst -http://www.ThinkHDI.com/
Registered Linux user number 464583
"Computers have lots of memory but no imagination."
"The problem with troubleshooting is that trouble shoots back."
- from some guy on the internet.
Noel wrote....
-----------------
Every time I think about it I kick myself... Sigh!
Although I suspect a lot of people here have stories like that...
-----------------
Yeah Noel, we all do. I had a couple different really great machines offered
to me long before I got into collecting. A DG nova 3 and an IBM System/3
come to mind, I'm sure there were others. I declined and they were scrapped.
But here's one with a good ending....
Many years ago (I was around 19 years old) I acquired two Microdata Reality
M1600 core machines (including full schematics and source code, completely
unheard of for those machines). These two particular systems were very
unique (basically one of a kind) even within the microdata world. After a
time my parents ordered them out of the house and a "friend" agreed to store
them. A few weeks after moving them to his house, he informed me that he
gave them away and wouldn't tell me to who/where.
Decades later I got into collecting, found the classiccmp list, met Jim
Stephens here, and we've talked on the phone and met due to our shared
history/interest in Pick-based machines. During one conversation it was
discovered that - not directly, but through several chains of
trades/sales/pickups - Jim Stephens had those exact two systems that I used
to own. Given the unique nature of the two machines, there's no doubt they
are the exact same ones. But we've also discussed the details of who we each
knew, and pretty much ironed out who all's hands they passed through between
him and I over the years.
So... while I am sad I "let those machines go"... it's great to know that
they eventually wound up in a great home of a fellow collector that I know -
instead of the shredder!
Best,
J
@ Brent Hilpert
May I ask what software you use for creating your schematics ??
I like the way gates are drawn.
Thanks !
---
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