13 Sep
2015
13 Sep
'15
3:39 p.m.
Hi there,
we just restored our PDP-11/23+ rebulding a new PSU around a
normal PC PSU and creating the real time clock needed for some
OS.
we're wondering about what UNIX can eventually run on it :)
http://museo.freaknet.org/en/restauro-pdp1123plus/
bye,
Gabriele
--
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13 Sep
13 Sep
4:23 p.m.
On Sun, 13 Sep 2015, asbesto wrote:
we just restored our PDP-11/23+ rebulding a new PSU
around a normal PC
PSU and creating the real time clock needed for some OS.
we're wondering about what UNIX can eventually run on it :)
http://museo.freaknet.org/en/restauro-pdp1123plus/
11/23? Should be able to run V6, but not V7 (no sep/id space). Does it
have the FPU? Those variants were damned rare (here in Oz, at least).
The AUUG archives ought to have stuff on it (cough, cough; I ported Unix
to the thing).
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
I'll support shark-culling when they have been observed walking on dry land.
4:23 p.m.
On 13/09/2015 10:39, asbesto wrote:
we just restored our PDP-11/23+ rebulding a new PSU
around a
normal PC PSU and creating the real time clock needed for some
OS.
we're wondering about what UNIX can eventually run on it :)
You could run 7th Edition; I run that on my 11/23+. You'd need an 11/73
or another processor with split I&D space for anything later.
I'm curious as to why you needed a 60Hz clock when your line frequency
is 50Hz? All the DEC O/S can run with a 50Hz, as can UNIX.
--
Pete
Pete Turnbull
4:31 p.m.
On 13/09/2015 11:23, Dave Horsfall wrote:
11/23? Should be able to run V6, but not V7 (no
sep/id space). Does it
have the FPU? Those variants were damned rare (here in Oz, at least).
No, you don't need split I&D for 7th Edition, which runs just fine on
mine. As demonstrated at the DEC Legacy Event in Windermere a few
months ago.
http://www.wickensonline.co.uk/declegacy/
See, specifically, the second and third pictures in the 2015 gallery
http://wickensonline.co.uk/declegacy/image/tid/13 and
http://wickensonline.co.uk/declegacy/node/267
--
Pete
Pete Turnbull
5:25 p.m.
On Sun, 13 Sep 2015, Pete Turnbull wrote:
Ah; I only saw the 18-bit version, not the 22-bit version...
Thanks.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
I'll support shark-culling when they have been observed walking on dry land.
11/23? Should
be able to run V6, but not V7 (no sep/id space). Does
it have the FPU? Those variants were damned rare (here in Oz, at
least).
No, you don't need split I&D for 7th Edition, which runs just fine on
mine. As demonstrated at the DEC Legacy Event in Windermere a few months
ago. 
7:53 p.m.
Dave Horsfall scripsit:
11/23? Should be able to run V6, but not V7 (no
sep/id space).
More precisely, it won't be able to run executables with a magic number
of 0411, which demands split I/D. I don't know offhand which those were.
But split I/D support goes back to V5, according to a.out.h.
--
John Cowan http://www.ccil.org/~cowan cowan(a)ccil.org
Does anybody want any flotsam? / I've gotsam.
Does anybody want any jetsam? / I can getsam.
--Ogden Nash, No Doctors Today, Thank You
15 Sep
15 Sep
3:33 p.m.
Sun, Sep 13, 2015 at 11:23:35AM +0100, Pete Turnbull wrote:
I'm curious as to why you needed a 60Hz clock
when your line
frequency is 50Hz? All the DEC O/S can run with a 50Hz, as can
UNIX.
oh well, it was just a choice :)
--
[ ::::::::: 73 de IW9HGS : http://freaknet.org/asbesto ::::::::::: ]
[ Freaknet Medialab :: Poetry Hacklab : Dyne.Org :: Radio Cybernet ]
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6 comments
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participants (4)
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asbesto -
Dave Horsfall -
John Cowan -
Pete Turnbull