[TUHS] Can PDP-11/23 PLUS run Unix?

[Madeline Autumn-Rose via TUHS]

v7m is also an option
Sent from my iPhone

> On Feb 26, 2026, at 15:03, Clem Cole via TUHS <tuhs at tuhs.org> wrote:
> 
> https://gunkies.org/wiki/PDP-11/23#:~:text=hampage.hu,are%20no%20problems%20with%20this.
> 
> 
> To your questions. Because it lacks separate I/D
> Space and does not support supervisor mode (only user and kernel) 2.11BSD
> will not work.  However V6 and V7 are possible. I think Ultrix-11 should be
> able to work and is more likely to have the low level details that 11/23
> will need.
> 
> 
> Sent from a handheld expect more typos than usual
> 
> 
>> On Thu, Feb 26, 2026 at 5:52 PM ROBERT MYERS via TUHS <tuhs at tuhs.org> wrote:
>> 
>> I’ve just obtained a 11/23 Plus system off of EBay and plan to get a QBone
>> to emulate memory along with a few other things.  I need to know if
>> Floating Point support is a requirement as well if I can also emulate up to
>> 4 Mb of memory.  I’m interested in v6/v7/BSD2.11 for Unix variants.
>> Sent from my iPhone
>>