On May 20, 2013, at 3:47 PM, G. wrote: On Mon, 20 May 2013 21:10:18 +0200, Johnny Billquist wrote: Using the various implementations in RSX, I can tell that it's not RSTS/E-like, but TOPS-20. Actually I do not really know which seems which: I based my assumptions on something from Paul Koening I might have misread or misremembered... :P Bit rotting is a big issue of mine :) Thanks, but in this case the mistake is probably mine. I would have guessed that TOPS-10 used the RSTS flavor of RTERM. Johnny's experiment certainly says otherwise. paul