On Monday, May 9, 2016 at 12:55:52 PM UTC-4, email@example.com wrote:
I installed literally thousands of 5150's when I worked IT for a former
Fortune 500 company. The scientists in the Research Labs got them first,
then management, then the 5150's replaced the hundreds of Radio Shack
TRS-80's that we had installed for the secretaries a few years earlier.
Every 5150 had to have an IBM-3270 terminal emulator board installed
so employees could connect to the mainframe. It was interesting to watch
some employees use them as nothing more than glorified terminals while
other's took full advantage of the "computing power" at their fingertips.
On Mon, 9 May 2016 10:25:25 -0700 (PDT), DerbyDad03
There were a few flavors of that card and several software options.
IBM internal had a pretty neat one that ran with very low overhead,
supported four 3270 sessions and a DOS session, that could also be
You could have a bunch of stuff going on if you were running a 286
with a big memory expansion card in it and the right extended/expanded
memory drivers loaded.
This was the one I had on my desk..
On 05/09/2016 02:04 PM, firstname.lastname@example.org wrote:
Just to see if I could do it...maybe ten years ago or so I got a Zenith
Data Systems 286 with 512 megs of on-board RAM
In my junk box I had an ISA memory expansion board and was able to
install 16 megs of RAM. I even had the software so that DOS & Win3.1
could recognized it.
On Monday, May 9, 2016 at 3:05:05 PM UTC-4, email@example.com wrote:
If I recall correctly, there were more than a *few* flavors. It seemed like
they changed flavors with each subsequent order of 5150's as well as when
they ordered spares. You never knew which emulator was installed until you
got on site and looked at the user's machine. Sometimes we had the correct
spare in stock, sometimes we were changing cards as well as software.
Regardless, it sure beat swapping out an entire 3270 terminal.
On Monday, May 9, 2016 at 4:10:26 PM UTC-4, firstname.lastname@example.org wrote:
Depending on the situation, we either swapped 'em out and repaired the bad unit in
the shop or fixed them on-site. It depended on the symptoms, whose terminal it was,
e.g. in a secure area, we'd sometimes swap them on a cart *outside* the area and let the
customer hook the good one back up.
When we moved up to PC's things got a little more complicated.
On Monday, May 9, 2016 at 7:16:32 PM UTC-4, email@example.com wrote:
Ahh...I see. You were a 3rd party.
I worked for the same company as my customers, but for a different division.
We charged them for parts and labor, but many of the terminals were owned by IT. As I mentioned earlier, once we moved to PC's and they became capital items
owned by the individual departments, "swaps" went away, except for the
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