My recollection, Unix on the 11 started with the 20 but because of the limited capabilties, it really was done on the /45. The three rings or 3 execution levels were not supported on the original machine. bb
On Wed, Jun 19, 2019 at 5:20 PM ED SHARPE via cctalk <cctalk@classiccmp.org> wrote: > > unix developed on 11/20 with 20 on panel or machine that just said pdp/11? > > Help - have a nice looking 11/20 plus a weird analog computer and a > Nike guidance gyro platform for AJAX ( 2 gyros loose need prints to > rewire correctly) in trade for and extra ribbon Mike we had. > so anyway today's questions > > - bell labs UNIX machine says 11 or 11/20 > -anyone have schematics or wiring chart for NIKE AJAX Gyro Plantform? > Drop offlist as not to clutter things > thanks Ed#