W dniu 27.04.2020 o 17:48, Bernd Oppolzer pisze:
Am 27.04.2020 um 15:39 schrieb Clark Morris:
I wanted USAGE BIT 50 years ago because I was dealing with
bit switches on customer, product and open account files.
In 1992, my customer at that time (local transport) wanted to help
the local transport company in Lodz (Poland), which is our partner town,
to replace their ODRA machine (Polish ICL clone) by an IBM mainframe
(4381 model 12, IIRC) running VM/CMS, VSE, CICS, SQL/DS etc.
The programs there were COBOL programs. Our manager told the people
there,
that there will be no problem, because COBOL is COBOL, after all.
When we looked at the COBOL programs at the ODRA machine, we soon
realized two severe problems that gave us some headaches:
- a printer with line width 160 characters (we had 132 maximum);
all ODRA programs of course used this line width for their reports
- and variable definitions like this:
01 BITS PIC 1(8).
that is: eight bits.
So the migration to IBM was not as cheap as expected :-)
what made our support more painful was the use of polish variable names
throughout the programs ... nobody of us knew Polish, only one of them
knew
German, and one knew English :-(
but it was a very nice experience, great fun, and we stayed friends
until today
Benrd,
As you know I live in Lodz (proper name: Łódź) and know a little bit
this case.
AFAIK they used 4381 mostly for Odra emulation program which ran under
VM. In 1999 they replaced 4381 with "integrat" (grat is junk in Polish),
that means P/390 machine. I saw it, touched it, even heard the price,
but I don't know the parameters.
I think all of the staff retired or even passed away (my colleague).
In my opinion both migrations were simply wrong. The needs of MPK could
be satisfied with regular PC, not even strong one. Of course that would
require change of the application, but it would be cheaper than the
hardware spendings. (of course I know they got 4381 for free as well as
the tramway).
BTW: Nowadays MPK still buy second hand tramways from Germany. :-) The
have strong mechanical workshop so they do renovations even for other
cities. The price of used tramway is approx. 1/30 of new one (which
often also need significant maintenance).
For those who don't know ODRA: There were many incompatible machines
with that name, however the most popular and latest Odra was licensed
clone of ICL 1900 with GEORGE 3 operating system. AFAIK the last Odra
was switched off in 2006. The manufacturer of Odra was ELWRO in Wrocław
- beautiful city by the Odra river. Now there is IBM office there -
2000-3000 IT specialists supporting various systems including mainframes.
Regards
--
Radoslaw Skorupka
Lodz, Poland
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