On Mon, Oct 3, 2016 at 12:13 PM, Paul Koning <paulkon...@comcast.net> wrote:
> > > On Oct 3, 2016, at 12:07 PM, william degnan <billdeg...@gmail.com> > wrote: > > ... > > I should have been more precise, but my point is that this is a > non-parity > > RAM basic 11/35 system useful for peripheral interfacing and > > communications. As is, not good for something like RT11. > > I wouldn't look at it this way. Non-parity memory is fine for any > application if you judge the risk of memory error to be low enough for that > application. Peripheral interfacing or communications may or may not be > such an application. An application running on RT11 may or may not be. > The OS isn't what decides this, but rather the requirements of the > application: the expected bit error rate for the memory technology in use > vs. the failure rate that's tolerable for the application. > > paul > > 16K RAM does not make for much of an RT11 system. The industrial/beefy 11/40's all have parity RAM. My PDP 11/05 has the same core stack as this 11/35.