11 Jun
2025
11 Jun
'25
12:14 p.m.
Sorry, I sent a response only to Warner by accident. SunOS 4 runs just
fine on MP machines, I have a dual processor HyperSPARC SS10 running right
now. The MP support isn't ideal by modern standards but for the time
period it's fine, and it definitely works well.
-Henry
On Wed, 11 Jun 2025 at 08:09, Dan Cross <crossd(a)gmail.com> wrote:
On Tue, Jun 10, 2025 at 11:41 PM Warner Losh
<imp(a)bsdimp.com> wrote:
They are also UP, so SunOS 4 will run on them...
As I recall, SunOS 4 would run on MP machines, though with some
restrictions. Perhaps only one CPU could be in the kernel at any
given time?
- Dan C.
On Tue, Jun 10, 2025 at 11:37 PM Henry Bent
<henry.r.bent(a)gmail.com>
wrote:
>
> Yet another reason why I suggested a SPARCstation 2 or 5; of all of
the
machines from that time period those are ones that will at least be
reasonable with power consumption.
>
> -Henry
>
> On Tue, 10 Jun 2025 at 23:20, Dan Cross <crossd(a)gmail.com> wrote:
>>
>> On Tue, Jun 10, 2025 at 1:44 PM Clem Cole <clemc(a)ccc.com> wrote:
>> > Can I suggest you start with OpenSIMH - https://OpenSimH.org and
try
running any a simulated system. It's a lot cheaper and while quite
the same has having the the actual hardware, a lot easier to manage and
most everything you could do from the old days can be done on you personal
computer. If you want BlinkenLights, get one on of Occar's wonderful
PiDP11 kits - https://obsolescence.wixsite.com/obsolescence/pidp-11
(which run OpenSIMH behind his lights and switches). Again a lot small and
will meet you budget constraints.
>>
>> Another side of that is power consumption. The older machines will
>> absolutely drink energy; OpenSIMH on a modern SBC is so much more
>> efficient in that regard.
>>
>> - Dan C.
>>
>> > On Mon, Jun 9, 2025 at 2:08 PM Vicente Collares via TUHS <
tuhs(a)tuhs.org> wrote:
>> >>
>> >> Hello Milo,
>> >>
>> >> On Mon, 9 Jun 2025 13:38:54 -0400
>> >> Milo Velimirović <milovelimirovic(a)gmail.com> wrote:
>> >>
>> >> > What’s your budget and what’s your level of hardware technical
skill? If budget is no concern, there are occasional complete pdp11 or
vaxen on eBay. Or, you could get CPU cards and interfaces to piece together
a system. If you go that route a Unibone or Qbone is highly recommended for
both debugging and filling in hardwar gaps via emulation. Alternatively,
there are several FPGA projects to emulate -11s.
>> >>
>> >> Buying a complete PDP-11 or VAX is the dream, but it's not what
I'm
>> >> aiming for to start. I was thinking of something like a UNIX
>> >> workstation. I haven't thought about the possibility of piecing
together
>> >> a system using various cards.
Thanks for pointing that out, I'll
have to
>> >> look into it.
>> >>
>> >> Budget is a concern for me. So ideally I would like to spend
around $500
>> >> USD on the actual computer. Is
that realistic for the type of
computer I
>> >> mentioned above?
>> >>
>> >> I'm not hardware savvy, so I would have a limited ability to do
repairs
>> >> on the electronics. I do know
someone who is though, so I might be
able
>> >> to get some help on this
project.
>> >>
>> >> I wish you an excellent week,
>> >>
>> >> Vicente
>> >> vicente(a)collares.ca