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Hi Patrick,

Really testing my (fading) memory!  This was on a System3 Model 15D.  I'm sure there wasn't anything like the object authorities on the current IBM i. To give you an idea, here's a quote from https://en.wikipedia.org/wiki/IBM_System/3

The system could only run two programs simultaneously, except for the model 15 or systems running the Communications Control program, CCP. The CCP was a system control programming feature that allowed to support an online network ofterminals <https://en.wikipedia.org/wiki/Computer_terminal>.

What I'd call /minimal/ operating system.  These days, I sort of correlate MRT to a web server, which calls a program to handle a particular web page.

--
*Peter Dow* /
Dow Software Services, Inc.
909 793-9050
petercdow@xxxxxxxxx
pdow@xxxxxxxxxxxxxx /

On 8/16/2022 9:17 AM, Patrik Schindler wrote:
Hello Peter,

Am 16.08.2022 um 17:15 schrieb Peter Dow<petercdow@xxxxxxxxx>:

I think the classic (late 1970s when I was learning CCP), was airline reservations. Ticket agents would all use the same program, which would show the entry screen, and one program would handle all the input.
Interesting! Do I understand correctly? There was no distinction between individual users (user profiles with individual authorities)?

:wq! PoC




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