I found this interesting for perspective. The British media (and
AFAICS of Australia, New Zealand and several bits of Europe) have been
saturated with coverage of a much-loved, widely-celebrated and revered
hero of tech.
As FC points out, even the American _tech_ media barely noticed.
?
The prescient, quirky legacy of U.K. gadget inventor Clive Sinclair
Little known in the U.S., Sinclair democratized computing with his
dirt-cheap 1980s PCs. Even his many failures were decades ahead of
their time.
?
https://www.fastcompany.com/90680349/clive-sinclair-obituary
--
Liam Proven ? Profile: https://about.me/liamproven
Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com
Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven
UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053
While restoring and repairing a Data General Nova 2/10 I found a bad
bipolar PROM on the CPU board. The PROM has open-collector outputs and is
organized as 32 words by 8 bits. It appears that one of the open-collector
driver transistors is faulty (but it could also be that a fuse has
"healed").
The part is an Intersil IM5600CP, but these were also made by others, for
example Signetics and Philips made the 82S23 and TI and NTE made the faster
SN74S188N. Some vendors still sell these parts and there are even a few on
Ebay.
How do I program these PROMs? I found one somewhat obscure description of
the algorithm in the NTE datasheet, but I suspect that each manufacturer
had (somewhat) different algorithms.
Is there an affordable commercial programmer out there which can program
these PROMs?
Is there a simple design out there which I could breadboard for a one-off
programming job (maybe using an Arduino to control the programming
sequence)?
Thanks and best regards
Tom Hunter
I quite agree that one OS isn?t better than another. It is one?s personal
choice. However, it would be amiss of me not to acknowledge that some
people prefer one over another and will do so until someone proves
otherwise. My dear friend and I don?t let this situation get in the way of
our relationship though.
In the past I have run both WIN and Linux on my machine ? a dual-boot
situation I will not carry forward with WIN 11 ? and find Linux does some
things better than Windows particularly when I run an emulator(It is based
on a Coleco ADAM I?ve had since1984.)
Happy computing.
Murray ?
Dear List,
I am looking for older versions of MatLab (3.x, 4.x, and 5.x) for Unix
and (Open)VMS. I'm happy to pay a reasonable price for media kits, or,
alternatively, images of the installation media would suffice.
The media for Windows or Mac can be found on the various abandonware
sites, but I've had no luck finding MatLab for Unix / VMS so far.
Cheers
Malte
--
Malte Dehling
<mdehling at gmail.com>
Hi
Looking for a Sparcserver 1000/2000 to add to the sun collection. I?ve never seen one of these in the UK, but hopefully there might be one around. Happy to buy / pickup as I know they are heavy in the UK. Outside UK I might be able to arrange for collection.
Thanks.
I recently rescued two Microvax-2000s but both have dead RD53s.? Does anyone have a ROMable image of the Microvax 2000/Vaxstation 2000 boot-PROM patches from Wolfgang Moeller at?http://ftp.gwdg.de/pub/vms/pk2k/??? ?I'm looking to install NetBSD, not VMS and I don't have any VMS systems on which to run PATCH.? ?Microvax 2000 specs say it can sustain 3.3MB/s I/O, which has to be via the SCSI interface.? So a SCSI emulator should be significantly higher performance than an MFM drive (either 30+ year old drive, or emulator).
Web-searching shows a Sean O'Banion has burned the PROMs successfully; I haven't yet found other names.
If someone is willing to burn at least one set of EPROMs for me, I'd pay for the service (either ship EPROMS, or pay for them).
?
You might want to search the Github repositories of a certain "athornton"
looking for something called "yarr".
Obviously it would be wrong to use it. So don't.
Adam
On Fri, 2021-09-24 at 12:00 -0500, cctalk-request at classiccmp.org wrote:
> > supported by any release licensed by VSI, and they changed the
> > PRODUCER
> > key so you can't use those PAKs on DEC/CPQ/HP variants of VMS.
>
> Part of their licensing agreement with HPE which prohibits them from
> selling/licensing any previous version of OpenVMS that they haven't
> worked on.
>
> > HP stopped issuing new hobbyist PAKs back very early in 2020. I put
> > in
> > for a renew March or so and never got it. They were so
> > disinterested in
> > the program that they didn't mention stopping it, so I guess it
> > isn't
> > surprising that the page is still up.
>
> If it's a VAX PAK you need, contact me and I can send you a copy of
> the last VAX OpenVMS Hobbyist PAK sent out.? Note that it expires on
> 1-JAN-2022 so it's good only for a few more months.
Yeah, would have been nice if they would have handed it off to Montegar
again for VAX/early Alpha with the understanding that (a) it would be
the same restrictions that DEC/CPQ/HP had and (b) they weren't bugged
about it ever again. Sigh. Fits into the HP model of "buy and bury" I
guess. At least VAX has other options.
Anyone succeeded in patching the DCL security hole for VAX? I know it
wasn't officially fixed.
Hi all,
My PDP-11/73 has started misbehaving after several years of being very
stable. It is showing symptoms similar to when I've forgotten to enable
the LTC in the past, except this time, it is enable.
Power supply seems good - +5V, +12V, all seems there and appears to be
stable. I've probed the LTC going onto the backplane and I'm getting
50Hz. It looks a tad noisy, not sure if this is a problem. I will see if
I can get a picture of it, but it has very distinct rises and falls, so
hopefully that's ok. Looks to be about 50% duty cycle.
I've attempted several builds of the kernel, including the
out-of-the-box build from 2.11BSD distribution. I've also compiled a
shrunk down kernel without a bunch of devices I don't have, but it still
fails to work. I am using a SCSI2SD so it's easy for me to copy images
and test them in SIMH - they all boot fine in SIMH with a similar setup
(mscp, tmscp, 11/73, 1MB-ish RAM).
Does anyone have any ideas what might be causing this? I've run out of
ideas unfortunately. I'll stick a dump of the boot below, with debug
flag passed showing output from autoconfig.
I've also tried it without the tmscp card - just CPU, RAM and Emulex
UC07 in MSCP mode for scsi disk. I have tried it with less memory, and
I've tried removing the halt jumper from the 11/73 board (W5 if I
remember correctly)
Cheers,
Aaron
---------
^C
BOOT> DU 0
73Boot from ra(0,0,0) at 0172150
: ra(0,0,0)unix -D
Boot: bootdev=02400 bootcsr=0172150
2.11 BSD UNIX #116: Wed Dec 31 18:01:57 CST 1969
root at localhost.2bsd.com:/usr/src/sys/GENERIC
ra0: Ver 5 mod 13
ra0: RA81 size=1216601
phys mem = 1179648
avail mem = 959040
user mem = 307200
_hkprobe = 0
_hkattach = 143330
_hkVec = 0
hkintr = 120
_htprobe = 0
_htattach = 143550
_htVec = 0
htintr = 150
_raprobe = 0
_raattach = 34270
_raVec = 34200
raintr = 100
_rkprobe = 0
_rkattach = 144650
_rkVec = 0
rkintr = 130
_rlprobe = 0
_rlattach = 144770
_rlVec = 0
rlintr = 110
_tmprobe = 0
_tmattach = 143610
_tmVec = 0
tmintr = 160
_tmsprobe = 0
_tmsattach = 143740
_tmsVec = 143730
tmsintr = 200
_tsprobe = 0
_tsattach = 143660
_tsVec = 0
tsintr = 170
_xpprobe = 0
_xpattach = 0
_xpVec = 0
xpintr = 0
endvec = 1000
_conf_int = 16124
CGOOD = 14
CBAD = 24
_nextiv = 5500
trap = 4150
_version = 17400
KERN_NONSEP = 0
Grab 177440 = 36556hk ? csr 177440 vector 210 skipped: No CSR.
Grab 172440 = 36556ht ? csr 172440 vector 224 skipped: No CSR.
Grab 172150 = 0Grab 156 = 240Grab 154 = 100Stuff 14 @ 154
Stuff 340 @ 156
probe ra: return conf_int:Stuff 100 @ 154
Stuff 240 @ 156
ra ? csr 172150 vector 154 bad probe value 224.
Grab 177400 = 36556rk ? csr 177400 vector 220 skipped: No CSR.
Grab 174400 = 36556rl ? csr 174400 vector 160 skipped: No CSR.
Grab 172520 = 36556tm ? csr 172520 vector 224 skipped: No CSR.
Grab 174500 = 0Grab 262 = 0Grab 260 = 0tms ? csr 174500 vector 260 interrupt vector already in use.
Grab 172520 = 36556ts ? csr 172520 vector 224 skipped: No CSR.
xp ? csr 176700 vector 254 skipped: No autoconfig routines.
At this point it is stuck no matter how long I wait.
> From: Tony Duell <ard.p850ug1 at gmail.com>
> Were there 2 things called the KM11?
> The KM11 that I know is the maintenance unit
> From: Paul Birkel
> I think that we're all talking about the ML11-A, or at least are
> intending to ... although the Subject line has been erroneous from the
> get-go ...
Well, at least your brains are working, unlike mine! (Age starting to catch
up with me?) Yes, the ML11; I tried to correct the erroneous 'KL11' and
changed the wrong letter!
Noel