The kernel remained the JHU/BRL Unix kernel we used everywhere else (a hacked version of V6 where we put a filesystem switch in to allow mounting of either V6 or V7 filesystems). I don't know where he got the NCP code that he jammed into it, but it was likely the NCP Unix project you mentioned. I was actually not there at the time (My roommate Bob Miles was) and this was one of the "January 1" cut over dates (a few years later, we'd be jamming 4 BSD TCP into that kernel for the TCP/IP conversion). I do remember watching Mike l building the thing on the 11/70 and lugging the RK05 over the the other building to test it. -----Original Message----- From: TUHS [mailto:tuhs-bounces@minnie.tuhs.org] On Behalf Of Paul Ruizendaal Sent: Monday, June 4, 2018 6:18 AM To: tuhs(a)minnie.tuhs.org Subject: [TUHS] ANTS (was: In memory of: J. Presper Eckert) ANTS was written by Gary Grossman and the experience with ANTS and ANTS 2 was the direct inspiration for NCP Unix (which was probably what Mike installed): http://chiselapp.com/user/pnr/repository/TUHS_wiki/wiki?name=ncpunix The source for NCP Unix is available on the Unix Tree webpage: https://minnie.tuhs.org//cgi-bin/utree.pl?file=SRI-NOSC the IMP 29 on the ARPANET was and a PDP-11/40 system that ran a terminal server called ANTS (ArpaNet Terminal Server) complete with little ants silkscreened on the rack tops. When the ARPANET went to long leaders, Mike replaced that software with a UNIX host giving the BRL their real first HOST on the Arpanet. Years later I recycled those racks (discarding the 11/40) to hold BRL Gateways (retaining the ants).