[HECnet] This is probably been asked already but....

[Johnny Billquist]

On 2012-07-02 01:08, Dave McGuire wrote:
On 07/01/2012 07:03 PM, Johnny Billquist wrote:
Let's start with just the operating systems. I'm thinking of trying to
get something running via SIMH soon, but I can't promise anything
specific.

      That really opens it up. ;)   Simh emulates several platforms for which
there are DECnet implementations:

      PDP-8: there's a DECnet implementation for OS/8.
      PDP-10: TOPS-10, TOPS-20
      PDP-11: RSTS/E, RSX-11/M/M+
      VAX: VMS, Ultrix

The PDP-8 DECnet is actually for RTS-8, and not OS/8. However, it's also
only PHASE II, so I think we could rule that one out.

    Oops!   My mistake, thank you for the correction.   I thought it was for
OS/8.   I consider myself to be a PDP-8 aficionado, but I've never seen
the DECnet implementation

I've had PDP-8s at home for the last 25 years...
I have DECnet-8, by the way. It's for RTS-8 V2. It's available on the net if you search around...

For PDP-11, I think that there was also some kind of DECnet for RT-11.
And you have IAS, as well as (probably) RSX-11D.

    I don't think there was a DECnet for RT-11, but I could be wrong.

There was. Megan Gentry commented several years ago on a thread we had, that it was Phase III only. There was some initial plans and work to get it to Phase IV, which she was involved in, but it was cancelled.
I don't have that code, though.

Isn't IAS basically a chopped-down RSX?

No. IAS is a separate thread in the RSX family, but it's based on -11D, as far as I understand. Seems to have had some really cool features, but I've never actually used it, only read some manuals.

In some ways, it reminds me a lot of VMS. Much more of the same attitudes like VMS. It implements all kind of stuff.

Also, I wonder if VAXELN also had DECnet?

    I'd imagine so, but I'm not certain.   I'd guess yes because the
firmware for some of DEC's X terminals is based on VAXELN, and early X
implementations supported X over DECnet.

Ah. Good point. I had forgotten about the X terminals.

And isn't there some sort of Alpha in simh as well nowadays?

    Barely, but yes.   It's not really far along enough to be useful yet.

Ok.

	Johnny

-- 
Johnny Billquist                                   || "I'm on a bus
                                                                  ||   on a psychedelic trip
email: bqt at softjar.se                         ||   Reading murder books
pdp is alive!                                         ||   tryin' to stay hip" - B. Idol