ron at ronnatalie.com
Sun Jul 3 01:17:10 AEST 2016
> The AT also had the 10 MB disk. Back when I had an AT, I ran Xenix
> System III on it along with the MS C compiler, and was able to create
> console-mode programs to run on everyone else's MS-DOS machines.
> It's hard to remember/believe that Xenix was a Microsoft product before
> DOS was.
I had an Xenix running on my AT as well.
> I would say even RT-11 is somewhere between executive and OS. It could
> run foreground tasks (hence the name Real Time) if properly sysgenned,
> and it had a decent kernel API that you didn't have to bypass.
I remember the FB (Foreground/Background) version that had more flexibility, even so, it didn’t preempt any running job. My second paying computer job was writing database software for an RT-11 system. This was a port of a 370 mainframe application to do lab test management at Hopkins hospital. This was after the two guys who were tasked with porting it to the Series-1 were having a hard time with it. Being the wizkid, the IBM guys brought me a 3101 Ascii terminal and asked if I could do anything with it and I connected it to the RT system in lieu of the ADM3 I had been using.
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