Subject: Re: current port-vax status
To: Dave McGuire <mcguire@neurotica.com>
From: Johnny Billquist <bqt@update.uu.se>
List: port-vax
Date: 03/08/2006 09:44:19
The only difference from a VXT2000 that I can discern here is that these 
are based on Unix, while the VXT2000 (and 1200) were based on some DEC 
inhouse OS. Otherwise it sounds exactly the same.
I can't remember if any of the VXT terminals were net-booted. They might 
have been. Others had the system in flash (I think it is).

The VXT terminals had a VAX cpu. They might have been running VAXELN, 
but I'm not sure. Anyway, they booted their OS, and you got your 
X-terminal, from which you could start XDM connections to other 
machines. It also had a terminal program, within which you could start 
telnet sessions, LAT sessions, CTERM sessions, or speak on the actual 
serial port.

	Johnny

Dave McGuire wrote:
> 
>   Sort of, yes, but a slightly different approach.  Xkernel was a 
> package that floated around for awhile maybe 11-13 years ago.  It was a 
> stripped-down kernel config for SunOS 4 (for Sun3 and SPARC), a shell 
> script that replaced /sbin/init, and a few other little things.  You 
> configured the machine to netboot, and it basically turned a Sun 
> workstation into an X terminal running either a chooser application to 
> select a host to connect to, or explicitly "tie" it to one host.  It 
> worked very, very well.
> 
>   At a large ISP I was involved with throughout the 1990s, we had dozens 
> of them sprinkled about.  At first they were back-ended by a Sun4-200 
> which was the "staff server" (its hostname was "ss1", for "staff server 
> #1"), but in the later years we migrated the back-end services to a few 
> SPARCstation-20 machines...with serial consoles in the computer room, as 
> servers should be.
> 
>   The machines running Xkernel were Sun3/50, Sun3/60, Sun3/140, and 
> Sun4/110 machines.  Once, just because I could, I built one with a 
> Sun3/200 CPU board, two 8MB RAM boards, and a framebuffer in a six-slot 
> 4/150 chassis. :-)
> 
>             -Dave
> 
> On Mar 7, 2006, at 11:19 PM, Johnny Billquist wrote:
> 
>> Aren't we just talking about an X-terminal here? DEC made those almost 
>> 20 years ago. Everything in firmware even.
>> That's how you play X against a big VAX. :-)
>>
>>     Johnny
>>
>> Dave McGuire wrote:
>>
>>> On Mar 7, 2006, at 4:45 PM, Rhialto wrote:
>>>
>>>> Stuff can be made fairly minimal - I have a stripped down 
>>>> NetBSD/sun3 to
>>>> run as an X server and nothing else (netbooting). There is not even an
>>>> init binary: it has been replaced by a shell script.
>>>
>>>   Mmm, sounds like Xkernel. :-)  I ran an office full of those years 
>>> ago.  Very cool indeed.
>>>          -Dave
>>> -- 
>>> Dave McGuire
>>> Cape Coral, FL
>>
>>
>> -- 
>> Johnny Billquist                  || "I'm on a bus
>>                                   ||  on a psychedelic trip
>> email: bqt@update.uu.se           ||  Reading murder books
>> pdp is alive!                     ||  tryin' to stay hip" - B. Idol
>>
>>
> 
> -- 
> Dave McGuire
> Cape Coral, FL
> 

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