In honor of the Unix 50 party tomorrow, I wrote an analysis of the available data to conclude the first PDP-7 that Ken and Dennis used to bring up Unix on was serial number 34. I've not seen this result elsewhere, but if it's common place, please let me know.

One surprise from the analysis: there was only one pdp-7 in the world that could have run the original v0 unix. It's the only one that had the RB09 hard drive (though the asset list referenced in the article listed a RC09 on that system).

I hope you enjoy

Warner