Back during Phase III development (so probably early 1980), I was asked to create a snapshot of our current development disk. I later found that this was for LCG in Marlboro. Looking at some of the TOPS tapes at pdp-10.trailing-edge.com it appears that MCB makes use of the communication executive code used by RSX/IAS and RT-11 DECnets. It also appears that MCB is RSX11S based - at least there’s a copy of RSX11S.TSK present.On Nov 21, 2022, at 12:56 PM, Thomas DeBellis <tommytimesharing@gmail.com> wrote:This is what I know, thought I knew or remember:
- The front-end connected to the master DTE (I.E., *the* front-end) runs a version of RSX called RSX20F
- The DN60 software running to speak RJE/37xx/HASP to an IBM system is specially written and not RSX based.
- The DN20 software is or was called "MCB". Somewhere there is an email as to what this means. I don't know if it is RSX based.
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I never heard of COPOS/11 and there is no mention of it in any of the emails that I have preserved from the 80's and 90's. The Tops-10 NFT and related sources appear to have some special casing for it. That's of interest because I don't believe the MCB could do DAP or had FAL.
I was wondering what ELAN meant?
RSX
SymbolRSX
ValueRSX
OS TypeTops-20 DAP
SymbolOS$ELN 15 ELAN .OSELN
On 11/21/22 11:02 AM, Johnny Billquist wrote:
On 2022-11-21 16:32, Robert Armstrong wrote:
Thomas DeBellis <tommytimesharing@gmail.com> wrote:
COPOS/11
So what exactly is COPOS/11? Did I miss that in the original discussion? I think it was said that COPOS/11 was the front end for TOPS-20, but AFAIK the FE for both -10s and -20s is RSX-20F. Was COPOS some internal name for that, or is there another story here?
I don't think anyone actually knows. But someone found some mention of it being some kind of FE for TOPS, but it't not *the* FE, as far as I could understand.
Johnny
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