At the end of the Spring 1982 semester, I spent a fair amount of time locating many source codes for all kinds of things & programs I had written, programs my friends had written, and a lot of things I probably wasn't supposed to have access to. I made a list, and prepared to make a batch job to back it all up onto tape. My last night there, I submitted the job, and one of the last things I did before leaving campus that semester was go to the operator window to retrieve my backup tape. They had it there, with a big note on it "DO NOT RETURN". It took a little coaxing, but I finally got them to give it to me. I've still got this tape, although I don't know if it is readable, or how I could get the data off, or make use of it. I haven't seen any Cyber 170 simulators, and don't expect to find one anytime soon.