Guess What Operating System...

From: Andreas Freiherr <>
Date: Wed Jan 15 12:28:54 2003

... 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).


Andreas Freiherr
Vishay Semiconductor GmbH, Heilbronn, Germany
Received on Wed Jan 15 2003 - 12:28:54 GMT

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