On 19-Mar-15 10:13, Johnny Billquist wrote: > > Just re-read the RSX-20F manual (I had almost forgotten I had read it > before). > In that manual, it is described in pretty good detail that they > essentially just have an unmapped RSX-11M system. They added a device > driver for the DTE-20, and a service task connected to that, and then > just customized the whole thing. > > The manual also mentions once or twice that RSX-20F also inherited > something from RSX-11D, but there is nothing in the manual explaining > what actually was inherited from -11D, so I'm not sure if I should > take that verbatim, or just a relationship note, since -11M itself was > designed based upon -11D. > > Johnny > Don't believe everything that you read. It most definitely was NOT a sysgened/ slightly customized version of 11M 2 or 3.something. The manual put the best possible spin on a one-off design.
I just finished describing the history/internals. BTW, the DN20 DECnet comm code in the 11/34 was built on pretty standard 11s - by the same folks. They did learn from the 20F experience.
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
