<> > Hmm... Unix came out first on a PDP7, but later versions ran on the <> > PDP11. I am not sure where C came in all this, but there are certainly <> > PDP11 versions. <> <> > I've never heard of either fitting on a PDP8. While neither were developed on a pdp8 there is nothing to say it cant be done. The -8 does run fortran, basic, cobal, focal and I believe pascal as well. The reson it wasn't done (C or unix) is timing. the -8 was past it's peak and the PDP-11 had eclipsed it. Allison