> > For my kids and their friends I used to set up several (up to like 5)
> > bare motherboards first with lantastic 2MB cards and then NE2000 10mB
> > compatible cards and play Doom over IPX back in the 90's.
>
> Yes. Thank you. IPX. That was the network layer.
Mac Doom even plays over Apple
Well, DSL Extreme is getting out of the T1 business, leaving me high and dry
(they've really gone to hell since GTT bought them out) since they don't offer
a static IP option on any of their lines anymore. I'll be working around that
problem for the next couple months while we move ...
Anyway, I h
Looking for some tools (guide_reader, others) that were apparently only on
unix.hensa.ac.uk's FTP. This hostname still exists, but directs to University
of Kent's mirror service, and there is no trace of the old archive. Anybody
happen to have saved any pieces of it?
--
-
>>> I can only conclude you needed something to save the surface on one of
>>> these...
>>> https://www.thisiswhyimbroke.com/floppy-disk-table/
>>
>> I just love that table
>
> Although the ad says "1.44 megabytes", it is a 720K.
> The write enable notch is not openable to write protect it,
>
>> There's several advantages to doing it that way, including balancing wear on
>> a disk (especially today, with SSDs), as a dedicated swap partition could put
>> undue wear on certain areas of disk.
>
> I thought avoiding this very problem was the purpose of the wear leveling
> functions in SSD
> I suspect none of this applies to the VIC-20 - the power switch just
> disconnects the 120VAC from the wall in the same way that pulling the wall
> plug out of its socket (or flipping the switch on a power-strip) would do -
> but I don’t know this at all. Is that the case?
Yes, it's just a
I found my old Model 745 in storage and other than needing a print head clean
and adjusting the printer contrast, it works splendidly. It has the manual and
I've got some plugs to build it an RS-232 connector when I find some more round
tuits.
This whetted my appetite for other 700s, including the
> I understand many Bubble memoryTi's were used by press. Does anyone have
> adverts or articles on this? Need some backup material for our tools of the
> journalist section weave one of the units to put in the display
I'm not sure if the prior owner was a writer or just an interested subscribe
>> 301 24 CONNECTED
>> DIALCOM NETWORK SYSTEM 10
>>
> Please do scan these! It is hard as hell getting info on The Source
> and also on Dialcom!
Yes, I definitely plan to transcribe them. There is potentially some
copyrighted material here but I think I can just excerpt that and still include
all
>>> 301 24 CONNECTED
>>> DIALCOM NETWORK SYSTEM 10
>>>
>> Please do scan these! It is hard as hell getting info on The Source
>> and also on Dialcom!
>
> Yes, I definitely plan to transcribe them. There is potentially some
> copyrighted material here but I think I can just excerpt that and still
> I don't have a 10Base2 switch,
Were there ever actual true 10b2 switches? I've only ever seen them as hubs,
and I haven't seen a 10bT switch that had a 10b2 port (all the 10bT devices I
have with 10b2 ports are hubs).
I just have one 10b2 system now, the VAXstation 3100 M76 (previously the HP
90
>> I find myself interested in (at least) the following and would like to
>> find others with similar (dis)interests to chat about things.
>>
>> - 10Base5 / 10Base2 / 10BaseT
>> - ISDN
>> - DSL / ADSL / SDSL / HDSL
>> - T1 / E1
>> - ATM
>> - Frame Relay
>> - ARCnet
>> - PSTN / PBX / PABX
>
>>> I still have 10 Mb Ethernet at home (on my Pro, and while it's not in use I
>>> have a few 10Base2 bits).
>> Please expand "my Pro". There's not much to go on.
>> #LivingRetroVicariouslyThoughOthers
> DEC Professional 380 (and a caseless 350) -- PDP-11s with a screwball bus and
> their own
> I still cross my zeds and sevens. And I propose that more people should do s
> as handwriting continues to deteriorate into un-favomable scribble!
So do I, but as a physician, my handwriting is already indecipherable.
--
personal: http://www.cameronkaiser.
> Cameron, do they teach indecipherable handwriting in med school? Seems to be
> universal!
It's probably the hand cramping after writing clinic notes all day.
Unexpectedly, electronic medical records have made my handwriting worse, not
better.
--
personal: h
> Now with electronics records (EMRs) we just get legible but junk notes - copy
> and paste for a week straight
Yeah, I consider that lazy. I always rewrite my notes, even if I saw them
myself the last time. It forces me to check the history and make sure nothing's
changed (and that I didn't m
> but I know at IBM we had 2 principle "ports" that we maintained (PPC
Did this have anything to do with Apple's alleged "A/UX for PowerPC" which was
supposedly OSF/1 based?
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems *
These things must be cursed by G-d. I've landed three. Two had bad lower boards
(the ones with the bubble memory and the main 9980 MCU) already. The third had
a bad print mechanism. I replaced the printer mechanism, but the printhead on
that was bad, so I powered it down and replaced the print head
> Gmail has ceased to provide classic authorization for smtp, pop3 or IMAP
> access; they want users to employ their new authorization mechanisms. So,
> which email service do you guys recommend? I'd like to be able to access it
> in the old classic way, from different clients. Ideally it would b
> The new hosting is provided by the Chicago Classic Computing group.
>
> Many thanks to Jay West for hosting the lists for 20 years!
Thanks, Jay, CCC and Dennis!
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodga
>> Dziękuję za twoją wiadomość. Przepraszam, jestem na wczasach i odpowiem
>> później.
>
> For those not conversant in Polish, he said he's on vacation/holiday and
> will answer later.
See, this is why watching Borat is educational: I actually knew what the first
word meant. And I also knew why
There used to be a cross-compiling gcc for MIPS specifically for the VR4121 in
the Agenda VR3 PDA, but it doesn't seem to be on any of the remaining sites.
Anyone out there got it or, he asked hopefully, the entire SDK? Binaries OK,
source better.
--
personal:
Trying to identify two cables I ended up with, one to DE-9 and one to Mac 8-pin
mini-DIN. The other end on both is a male 9-pin mini-DIN. These clearly look
like serial cables, but to what? A cursory Google didn't come up with anything
obvious. They don't fit the Mac GeoPort or Sun SPARC serial por
>> Trying to identify two cables I ended up with, one to DE-9 and one to Mac
>> 8-pin
>> mini-DIN. The other end on both is a male 9-pin mini-DIN. These clearly look
>> like serial cables, but to what? A cursory Google didn't come up with
>> anything
>> obvious. They don't fit the Mac GeoPort or
> I think there was a unix/unix-like OS for them, but I imagine context
> switching
> was slow...
There were a couple *nix workstations based on it. The Oki 7300 series comes to
mind. I think someone exhibited at that VCF pre-COVID.
--
personal: http://www.c
> I always thought the i960 was an upgrade to the i860 (sort of like i386 to
> i486 upgrade). However, based on the info on wiki it seems as if the i960
> actually came first and although a RISC chip it was in no way in the same
> league as the i860. Anyone can clarify or verify this?
I'm not ev
> How "stable" is bubble memory, over decades?
>
> There is a Sharp PC-5000 that may be available, I believe from 1983-1985
> era, which is said to have bubble memory. But the owner can't find a power
> cable, to verify if anything still works.
>
> I have older systems with ICs that are still wo
> I suppose it's the computer as well but I was surprised by how relatively
> slow they are, considering that they're 'solid state'.
It's largely the fact that bubble memory is inherently serial. You have to
cycle through all the bits in a line until you get to the right location.
--
---
> TenFourFox is essentially a current web-browser.
It's kind of you to say that, but at its core it's still just a hopped-up
Firefox 45. Many things work, many things work but look funny, and an
increasing proportion of things don't work at all. I myself just use it for
basic tasks now that I'm on
I've been trying to do a little work on the RDI BriteLite IPX I have here, but
when it runs more than a few minutes the LCD just blanks out white. The machine
seems to still respond to commands, so it seems like it's something with the
display hardware. Even powered off and back on it won't go back
> This usually means the timer of the pulse width modulation circuit is
> changing.
> If it’s an RC type circuit, probably the resistor is heating up and changing
> value. If it’s a ic that controls the PWM then check out the IC and the
> components that connect to the control pin.
That's an i
> Is there any kind of brightness control? Does it work at all when the screen
> goes white?
There are brightness and contrast controls, but they don't seem to do anything
even when the screen is working properly. (Note that this could simply be an
issue with the physical controls themselves rath
Got the Peanuts out today for a shakedown. They work well, or at least they did
until about 5 minutes into playing Kings Quest when the h-sync on the monitor
suddenly went out. Colours show and match what should be on screen but the
horizontal display is scrambled. It does it on both Peanuts, so I
> I had a problem like this on a VT52, and the problem turned out to be one the
> power supplies (the -12v one) had died. Wired in a 7812 (or whatever it is for
> - voltage) and the monitor came back.
>
> May want to look inside and see if a supply rail is dead.
A good suggestion. This morning it
David,
> With only a few exceptions, the museum's entire collection of HP hardware,
> software and manuals has now been shipped from Melbourne, Australia, to
> HPCA's archival company - Heritage Werks Inc, in Atlanta, Georgia, USA. The
> equipment will be catalogued and preserved as a record of H
Cracked open my General Magic DataRover 840 to find out what specific MIPS
R3000 variant is in it. However, the only chips that are large enough to be
CPUs are *two* with Bowser logos marked (C)GMI JAPAN GLACIER-01 F840276. The
other chips of notable size are easily identified as RAM, a sound/modem
>>> I am looking for a device that sits transparently in an RS-232 serial line
>>> and upon seeing a particular code go over the serial line ((or sequence of
>>> codes) will actual a relay (or a transistor). Something with two DB25s or
>>> DE9s and is configurable to what code will trigger the outp
> AI, not so clear. In my view, AI is a catch-all term for "software whose
> properties are unknown and probably unknowable".
Someone recently on Hacker News talked about the possibility of neural net
models to translate code for other architectures. The best response to this
idea described it a
Any Apple alumni (Al?) with documentation on AWACS registers? I'm trying to
figure out why the BeOS AWACS sound driver works on some Power Mac 6500s and
TAMs but not others (but works fine on 6400s and everything previously).
Yes, I'm aware that Be considered the 6500 "Unsupported but Compatible"
> I agree that we should probably use the intent of a specific era.
>
> I believe that the world certainly dropped out of my personal definition of
> 'Classic' when the 386 came in.
>
> I have an interest in things up to and including 80186, and they certainly
> are not run of the mill.
Somethin
My PRO 380 runs Venix/PRO. Which is cool, but someone sent me this:
https://www.frijid.net/blog/index.php/2015/06/07/182/
Allegedly this gets BSD 2.9 on, at least, the PRO 350. I'm particularly
interested because it supports networking. Anyone tried this on their PRO? Or
better still, an actual 3
> > Something like the HP LX series or even the portable ZEOS DOS palmtops
would probably be on-topic. The OmniGo 100LX behind me has a Vadem equivalent
of an 80186.
> Vadem made 186 clones? They made dense glue for V40 based Ampro sbc's. Never
> knew they made cpus. Not saying they didn't, but i
> > dumb charger. Might be worth a watch, but the tl;dr seems to be that trickle
> ^
> The what ???
Too long; didn't read
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * w
> I’m looking at some 3.5” floppies from about 1995, so probably about the time
> I got my first Mac.
> Am I correct that System 7 used A:\RESOURCE.FRK\DESKTOP as the Resource Fork
> data? MacOS 12.5 doesn’t appear to use it. :-)
> A bunch of the floppies I’m looking at have this, including ones
>> That sounds like a floppy disk written by PC Exchange. RESOURCE.FRK would
>> contain any resource fork for any file in that folder, so at the root
>> \RESOURCE.FRK\DESKTOP would probably have been the equivalent of the Desktop
>> folder.
> Thanks Cameron, that jogs a few old brain cells, and sou
>> I think (I might have mentioned it at the thread start) it was part of a
>> plan for a school network. Tandy offered a similar setup for schools
>> for the Model 1/3/4 systems, where the "host" could send programs, and
>> the clients would load from the common host system.
> IIRC there was the
Well, this is the second Tadpole laptop RAM module I've had go bad on me (one
in my PA-RISC PrecisionBook and now one in my SPARC UltraBook IIi). These are
the maroon-red 256MB or 512MB screw-in modules marked "Huxley Only" using a
custom friction fit connector, not regular SO-DIMMs. I can't find a
>> Well, this is the second Tadpole laptop RAM module I've had go bad on me (one
>> in my PA-RISC PrecisionBook and now one in my SPARC UltraBook IIi). These are
>> the maroon-red 256MB or 512MB screw-in modules marked "Huxley Only" using a
>> custom friction fit connector, not regular SO-DIMMs.
>> I don't think it's the connector, but it's junk if it isn't anyway, so I
>> might
>> see. These things screw in place and the fit was tight getting it out so it
>> would boot again, so I don't think it wiggled. Still, would be nice to know a
>> source for spares because it seems like others
Well, the weekend of hardware sudden death continues. The reason for getting
the UltraBook IIi out was to do some more work on kOpenRay, the free Sun Ray
server software I very occasionally maintain. Among other devices I use(d) two
Accutech Gobi laptops to talk to it since they have an oddball VPN
This has been around the block:
You can lose a screw in a micro.
You can lose a screwdriver in a mini.
You can get lost in a mainframe.
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckai...@floodgap.com
> Was there any PLATO/NovaNet arrangements with Atari like
> there was for Texas Instruments computers?
Yes, though not exactly. The TI implementation was a true, full Micro-TUTOR
runtime that ran Off-Line System lessons directly. Atari had a PLATO cartridge
that could connect to a server via mode
Odd fault on my Rev D KIM-1 popped up while writing code this afternoon
(initially I thought I had a bug in my paper tape transmitter) - between $0280
and $029f, the upper 5 bits are stuck at zero. The rest of the address range
seems fine. In particular, $0080-$009f, $0180-$019f and $0380-$039f wor
>> Odd fault on my Rev D KIM-1 popped up while writing code this afternoon
>> (initially I thought I had a bug in my paper tape transmitter) - between
>> $0280
>> and $029f, the upper 5 bits are stuck at zero. The rest of the address range
>> seems fine. In particular, $0080-$009f, $0180-$019f and
> I thought about this, but the KIM is a pretty simple system. The only memory
> mapped device in that range (really, on the entire unit) are the RIOTs, and
> their RAM at $1780 is fine and does not echo.
>
> The KIM only does address decoding for 8K and echoes the rest, so the same
> fault is map
Thanks for the suggestions, everyone. This board has NEC D2102AL-4 SRAMs on it,
so I ordered a couple MM2102AN-4s which look equivalent. I'll swap one in when
it arrives and see if that's the problem.
--
personal: http://www.cameronkaiser.com/ --
Cameron Kai
> If the failure affects the EPROM monitor,then any results you get from the
> monitor are suspect.
No, what I mean is, the appearance of the upper six bits being dead was because
of how the monitor shifts in data from the keypad. Since bit 2 was always zero,
it would look like everything above it
> Re NEC 8201a...
>
> This is a machine I have a lot if fondness for. Wrote many article
> drafts and crunched a lot of numbers on that little unit.
The 8201A was my first "laptop." I did a lot with it too. Unfortunately the
batteries died on it before all the stuff I did with it in Malaysia c
> Remember Haltek in Mountain View? (wasn't it at the dead end of Linda
> Vista? I bought my Tek 465 there.)
You don't mean Halted Electronics, do you? That should still be around.
I was passing through Sunnyvale on my way back south and picked up some
useful doodads at Weird Stuff, though it t
I'm looking for two items:
A VR241 to use with my DEC 380 as a colour head (even better if you have the
cable and a spare LK201, since I'm down to my last working keyboard). The
VR201 isn't cutting it anymore and I don't think I can use my VR260 with this.
An HP 6000 670H hard disk (the big one f
> > I'm probably showing my age (again), but "QIC" and "Supercomputers" just
> > seems to be about as related as "Chateau Margaux" and "Cheez Whiz".
> >
> > If one is spending millions on a supercomputer, why would anyone want to
> > put software for it on a QIC cart?
>
> Because it holds more tha
> interesting... hp-9000 in the news! -
> russian-hackers-used-backdoor-two-decades
I'm trying to identify the specific unit. It looks like an early PA-RISC,
but even the enlargement doesn't show the model number clearly.
> https://www.wired.com/2017/04/russian-hackers-used-backdoor-two-decade
> It's an HP9000 E55. The HP Computer Museum even has one in our collection!
Interesting. I guess it could be any of the E-class, though: OpenPA has a
picture of an E35 that looks like a slightly closer match. I'm surprised
it's recent enough to have a PA-7100; I would have agreed with Zane that i
> Try opening the following link in Chrome (not IE).
>
> https://www.wired.com/wp-content/uploads/2017/04/DSC_0794.jpg
>
> That opened the full image for me.
That link does come up in TenFourFox and you are right, it's an E55.
Mystery solved.
(please don't cc me on cctalk replies)
--
--
> > Thanks for the list--I was aware of the various Java engines and the WD
> > P-code engine, but had never run into the SCAMP.
>
> I just found an academic Pascal microprocessor from 1980 called EM-1 and
> described all the way to the chip layout level:
>
> http://authors.library.caltech.edu/27
> So it seems in the early days of the PET a company by the name of
> Forethought Prouducts sold an expansion module called the BETSI which
> plugged into the expansion bus of the PET and gave you four S100 slots. If
This sounds an awful lot like the KIMSI, which was the same manufacturer. I
have
> I am now retired so maybe I will find
> the time to get all that software glued together.
Retirement as an attempt to gain more free time just doesn't work.
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com
> > > I have both a pdp 11/34 and 11/23 and am trying to find some bbs software
> > > to run. Preferably something that will run under an os and not monopolize
> > > the whole machine.
> >
> > A krillion years ago I wrote about half of a BBS for my 11/34a, which
> > ran (as an RTS) under RSTS V7.0-
> I have no idea if I am on this list or not but I do not want to be on it at
> all.
Likewise. Although I support the general notion, I have no idea if I was
listed on it either, and it would have been better to contact the people on
it individually regarding permission IMHO. I'd prefer not to pai
> > https://en.wikipedia.org/wiki/Karen_Wetterhahn
> > http://i.imgur.com/0dXdc.jpg
> >
> > Karen Wetterhahn spilled a drop of a Mercury compound on her latex
> > glove, and died of it 10 months later.
>
> I have a hard time getting my head around Dr. Wetterhahn's poisoning. How
> many molecu
> The Wikipedia article on Dr. Wetterhahn seems to indicate
> this went a lot slower than we were told in the seminar.
> Not sure who to trust, there.
The NEJM article seems to say it was also not a precipitous decline.
--
personal: http://www.cameronkaiser.
> Metallic mercury isn't anything you want to ingest, but it won't go thru
> your skin unless it has some other compound to drag it,
This isn't quite true. Elemental liquid mercury will pass through skin but
at a much slower rate. Vapourized elemental mercury via inhalation is, uh,
more "efficien
> > Anybody that is paranoid about telling their location and the computer
> > dinosaurs running in their basement needs a head alignment.
>
> Randy, with all due respect, have you seen how much an Apple 1 or a
> Lisa... or even their _drives_ go for lately? Symbolics machines? Crays?
> One-offs
> > Displaying that Motif session on a 'real' CRT that takes 1/3 of your desk,
> > weights 50+ lbs and takes around 150W.
>
> I had a lovely 21" trinitron CRT here that I sent to the dump last year,
> it had sat idle in the storage room for ten years and I needed the space.
> That is shameful.
My
> I was looking at an old GI catalog and casually noting the CP1610 that was
> most of a PDP11 processor. I did some more web surfing and noticed that the
> Intellivision game machine used this chip. It just never dawned on me that
> they used this processor.
>
> I see that one could even get a ke
> I sold a bare CP1600 chip about a year ago to a collector. "Odd" is an
> understatement. A 10-bit wide instruction word, with the upper 6 bits of
> the opcode unused. Loading a 16-bit address took three words.
>
> Also, slow, very slow, with no I/O instructions.
But that was because it has
> I have run DECwindows on a VAX 3100 model 300 under VAX/VMS 5.5-1 using the
> Motif window manager with a dozen remote DECterms open plus Emacs, a clock,
> a calendar, etc. and it gave reasonable performance. The VAX was both the
[...]
> I was able to run Mozilla on it but performance was horr
> > Wit. There was a Mozilla build for VAX???
> > I have Netscape Navigator 3, but I thought that was the last VAX build. It
> > runs ... acceptably on my M76, though I wouldn't call it sprightly.
>
> No, I remembered after I sent it. It would be Netscape 3?. But remember!!
> It is spell
> Probably Mozilla 1 or there about. I think that was about the time I
> stopped trying to run any browser other than Lynx on my DEC Alpha.
I'm pretty sure that was for AXP VMS. There wasn't even a Navigator 4 for
VAX VMS that I can recall, though I'd love to be wrong.
Mozilla got all the way to
> > I emailed IBM regarding a license to do research with
For the OP, having the hardware still (last I checked) entitles you
to run AIX on it. You just have to find the media, which for a system that
old is not easy. I've never been able to find 4.1.5 on CD, for example,
even though I know it exi
> > > Probably Mozilla 1 or there about. I think that was about the time I
> > > stopped trying to run any browser other than Lynx on my DEC Alpha.
> >
> > I'm pretty sure that was for AXP VMS. There wasn't even a Navigator 4 for
> > VAX VMS that I can recall, though I'd love to be wrong.
> >
> >
> I'd be more than happy to buy it, do you think settling for 4.1.4 when it
> can run 4.1.5?
The main difference (having run both) is that 4.1.4 has a very nasty leak
in the sockets code. My production ANS 500 would run out of memory after
awhile because of all the sockets it opened and closed. 4.
> AIX 5.3 should run on this machine, so why run 4.x?
Depends on what you want to run on it. AIX 5 definitely had poorer multimedia
support and I think was an overall worse workstation operating system than 4
or even 3.2.5.
OTOH, AIX 5 is certainly a lot easier to find, and works well enough at t
> > It was more than likely x86 and the AIX would have been AIX PS/2 (which
> > I did a lot of work on at the time).
>
> I think you___re right, especially as, IIRC, it was a laptop.
Doesn't rule out the PowerPC, because there were PowerPC ThinkPads.
--
pers
> I used to read his column for its humor value but I always thought
> of him as an idiot as far as comuters were concerned.
Apparently this opinion is fairly widely shared:
http://www.panix.com/~clp/humor/computers/general/Jerry-Pournelle-parody.html
--
per
The Little Orphan Tomy Tutor site has finally been updated again:
* Tutti II 2.0, the tape-enabled Tomy Tutor emulator, is updated with lots of
core fixes (including a new ALU core derived from MAME/MESS), improved
faster graphics with fixed 9918A palette, and all-new high quality
SN76489AN
> There are some online repositories of C64 software. Having only a little
> knowledge when it comes to C64_s how do I get a C64 disk
> image onto a 5 1/4_ floppy?
I use a ZoomFloppy and a real 1541 (actually a 1571). These devices are
available from many places; Jim Brain built mine, or you can l
> Also (please correct me if I'm wrong), you lose the integrated floppy
> access.
You are correct. I don't believe it even works in 10.2, which *is* supported.
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.co
> I went through a number of "this totally works on a beige G3" MacOS 8.x and
> 9.x ISOs before finding one that would boot my beige G3 desktop. I think it
> ended up being MacOS 9.2.1.
There is a "boot-any" CD from the last eMac that can boot OS 9 that will boot
any OS 9.2.2-compatible Mac, of wh
> Just letting everyone know that Bob Applegate passed away a few days ago.
> He had been battling cancer for some time. He was involved with vintage
> computing for some time. Here is his website: http://www.corshamtech.com/
>
> This is the website for his memorial:
> https://everloved.com/life-o
Does anyone have one of Dwight Elvey's KIM-1 diagnostics boards out there who
would be willing to let me borrow it (I'm in southern California)? I would be
happy to pay shipping and a rental cost, provide a deposit, etc. Please contact
me off list if you're willing and the arrangements you'd prefer
> Anyone in MD got an AUI cable (few feet long) I can steal so I don't have to
> remove the bolts from the Pro/380's Ethernet socket or the pins on my 10bt
> ethernet MAU?
I just cheat and use a straight through DB-15 (waiting for someone to tell me
it's a DQ-15 or something instead ;), like a PC
I assembled Dwight Elvey's KIM-1 debug board (thank you, Gary!) and have now
certified two of my KIMs with it, so I'm very confident the harness operates
properly.
Unfortunately, the one I *want* to repair, my original KIM-1, won't start up at
all after replacing the 2102 RAM I was pretty sure was
Answering my own question for posterity:
> However, test 1, the RAM test, should show long flashes of the green LED if
> RAM
> is bad. I was prepared to see all long flashes which might implicate the
> buffers or address decoder, but instead it won't blink the LED at all in that
> or any of the o
In a shipment today I got several AMP-labeled dongles that look like SCSI
terminators ... except the 50 pins are arranged in three rows (17-16-17), not
the Centronics-style 50-pin connector nor the usual 2-pin configuration.
Anyone seen those before, and is it actually SCSI, or is it something els
>> Anyone seen those before, and is it actually SCSI, or is it something else?
> Common on old Sun SCSI stuff, it's a DD-50. Could be something else, but they
> were indeed used for SCSI termination.
Given what else was in there, this makes sense, and they look exactly like a
SCSI terminator s
> Personally I use my IMSAI somewhat regularly, thats my favorite computer
> from the mid 70s.
I have an IMSAI as well, but for me my favourite computer of that era is the
KIM-1, and that's such a simple design there are tons of reimplementations
(though I prefer the original since some of them
> I did manage to get one of those stickers off in one piece. I stored
> it on the backing paper of some rub-down letter transfers (remember
> those?) and never put it back after I completed the
> modifications/repairs. My idea was I'd put it on a unit I'd been
> inside if I did want to claim on th
> Do anyone out there have got UltraBooks or UltraBooks IIi up and running?
> Would
> highly be interested in a dump of the NVRAM/Timekeeper!!!
>
> The failed first generation UltraBook are (DS1643 NVRAM):
> (*) U20-14-9-512P with three (!!) hard drives, no battery port
> (*) U20-14-3-128B two h
> Interesting. So you still have got the hostid and the MAC address which might
> indicate, that the contents are not completely lost yet. Maybe just a few
> bits flipped leading to a wrong checksum (and the diag-switch? being set to
> true, leading to lng POST times)?
Maybe, but it also sa
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