Guess What Operating System...

... uses a dot as a prompt and responds to each of the commands "dir", "date", "ver" and a lot of others only with a "?"...? This question was asked at the Frankfurt Meeting 2002, an event of the "realtime special interest group" (RT-SIG) within German DECUS. I wasn't there, but just read an article in the "DECUS Bulletin". It looks like the system was presented to the audience life from a networked notebook. The report has it that after some guessing, someone suggested to try uppercase, and "VER" lead to the solution: EURO-12, running on a real, still fully functional PDP-12, connected to a terminal server, allowing the notebook to display the dialog. There is a small, but high quality picture in the bulletin, showing the blinkenlights (some of them actually illuminated) and switches, a screen that might be a GT40 or something that looks similar, and a dual DECtape drive (TU56, I guess). WOW! -- Andreas Freiherr Vishay Semiconductor GmbH, Heilbronn, Germany http://www.vishay.com