From: "Les Kitchen" <ljk@csse.unimelb.edu.au>

Responding to what Petros said:

...

I keep an half inch tape from a K1630, an East German PDP-11 clone.

We'd often have four or five simultaneous users on the PDP-11 at CVL (out of about 30 in the Lab with accounts on the machine), doing image processing and analysis, and I remember interactive performance (editing, shell) was generally pretty good. But we had a strong culture of nicing any non-interactive processes (like compiles and image processing). Do you remember what OS you ran on the K1630? Maybe it didn't have a convenient nice.

It was MOOS 1600(RSX-11 compatible), not Unix. There was MUTOS available, a Unix (System 7?) but it was not installed on the machine we used. I do not remember whether RSX-11 had a "nice" but I am sure we did not use it in the first week of studies. I read a book about the internals of RSX-11 short time afterwards, it was a copy on a microfiche. It was quite difficult to get a hand on literature like this when living on the wrong side of the Iron Curtain. Regards Peter