README.md
The four "tu56" files here come from four DECtapes read at the LCM+L.
They contain a port of 6th Edition Unix done by Tom Lyon and others
to IBM's System/370. An email from Stephen Jones says:
Tom Lyon says that they were written using 'tp' on v6 unix pdp-1145.
No errors on the reads :)
Warren Toomey used the 'tp' utility to extract the contents and create
more modern tar.gz archives of the tape images.
Tom has written a series of articles about this port of Unix on his blog;
the links are:
