Random memories, possibly wrong. In 1977/78 I was at udel and had done a fair amount of work on unix but as a lowly undergrad did not get to go to the Columbia Usenix meeting. Ed Szurkowski of udel went. Ed was the grad student who did hardware design for 11s for Autotote (another story) but also stood up a lot of the early unix 11s at udel starting in 1976, starting with an 11/70. Mike Muus used to come up and visit us at udel and Mike and Ed would try to ask questions the other could not answer. Mike always had a funny story or two. Ed later went to Bell Labs and I lost track of him. The directions for the MTA were fairly clear: it listed a stop that you under no circumstances should get off at, and if you did get off at, you should not go up to the street, lest you never return. This was no joke. Some places in NY were pretty hazardous in those days. I *think* this was the meeting where Ken showed up with a bunch of magtapes, and Ed claimed that, in Ken's word, they were "... found in the street." This part I remember well: Ed returning with two magtapes and our desire to upgrade. We at udel, like many places, had done lots of our own mods to the kernel, which we wanted to keep. So we ran a diff between trees, and I wrote a merge with TECO and ed which got it all put together. I later realized this was a very early form of 'patch', as it used patterns, not line numbers, to figure out how to paste things back together. I really got to love regex in those years. Except for one file: the tools just would not merge them. Ed later realized there was one key difference that we had not noticed, a missing comment, namely, the Western Electric copyright notice ... I'm kinda sorry that our "udel Unix" is lost to the great /dev/null, it would be interesting to see it now. ron