Talk:TOPS-20

Front end code

I seem to recall seeing the source for the code that ran in the PDP-11 network front end on MIT-XX somewhere. Anyone have any ideas where that might have been? If they used IOELEV, the source might have been kept on an ITS? It's also possible that I stashed a copy on MIT-CSR. (No doubt the same code was used on MIT-OZ, and probably also DEEP-THOUGHT.) Jnc (talk) 16:23, 8 November 2022 (CET)

Here is a copy. I think it's the only one I have seen around, but I'm not sure whether it's a good copy.

https://github.com/PDP-10/its-vault/blob/master/files/mmcm/xnetwk.98

Further investigation reveals MMcM's code was replaced by MINITS: https://github.com/Chaosnet/minits/blob/master/mits_s/config.849#L708-L768 Larsbrinkhoff (talk) 08:03, 10 November 2022 (CET)

I found a much later version of XNETWK on the MIT-CSR dump; version 165. Apparently it was also run on Oz and Deep-Thought.

I wonder why they replaced it with MINITS? And I wonder if the DTE driver in MINITS came from XNETWK? Jnc (talk) 23:56, 14 November 2022 (CET)