-Solid State Fisher Model 440-T receiver, not working correctly, but
probably fixable, has all parts, not in the best of shape, but could be
made functional.
-DEC M7639
-DEC M7622-BT 8 megs, not 16
-DEC M7621-AP
Chad Fernandez
Michigan, USA
From: Bill Pechter <pechter(a)pechter.dyndns.org>
>As far as I know that's as far as it got inside DEC as well.
>I once wondered where was the base DOS/Batch box left inside DEC
>to build the XXDP stuff and DECX/11... I figure they just hacked it on
>a DEC10 or RSTS/E box... maybe later on a VAX under PDP11 emulators.
Used to be in building 21 fieldservice diagnostic engineering. I always
wondered what the internal structure of it was.
Allison
Anyone want an IBM PC?
Reply-to: joan-keith(a)attbi.com
---------- Forwarded message ----------
Date: Fri, 19 Apr 2002 12:57:08 -0400
From: Joan Keith <joan-keith(a)attbi.com>
Subject: Questions about a donation
Hi,
I have one of the earliest IBM PCs. I don't know if this is something
you would be interested or not. As I recall, it was upgraded from 64k
of memory to 192 and it has a single-sided 5 1/4 disk drive. It is in
my mother's attic in Baltimore.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
I have an MK11 printset, but it has an M8159 schematic which has been
superceeded by the M8164 board (which I have). I don't have a schematic
for the M8164 board, which I presume is different than the M8159.
So, I am looking for scans of the M8164 board schematics...
Also, if someone has schematics for the M8728-AC/AF board that would be nice
to have as well.
--tnx
--tom
"Zane H. Healy" wrote:
>
> > > > try to describe the scsi bus and termination.
> > > > do a probe-scsi and a probe-scsi-all...
> > > >
> > > > let me know what that does.
> >
> > I'm pretty sure that there is a Sun screwup in the Ultra1 boot ROM such
> > that "probe-scsi" doesn't work right when "auto-boot" is enabled.
> >
> > auto-boot?=false
>
> After turning off auto-boot you need to type 'reset' and hit return, this
is
> true on both Ultra 1's and 2's. If the auto-boot is already off, you
still
> need to do a 'reset' before doing teh probe-scsi/probe-scsi-all.
>
> Zane
Well the RRD42, external CD worked. And I found out exactly why no
CD
drive worked internally... the plastic ribbon cable was tearing away!
Oh well. Guess it's time to stick my CD-ROM in a SCSI case...
--
--- David A Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- mailto:david.woyciesjes@yale.edu
--- (203) 432-0953
--- ICQ # - 905818
Mac OS X 10.1.2 - Darwin Kernel Ver. 5.2: Fri Dec 7 21:39:35 PST 2001
Running since 01/22/2002 without a crash
"Erik S. Klein" <eklein(a)impac.com> wrote:
> My first IBM PC (December 1981) cost nearly $2,800 for a 64K machine, 1 SSDD
> floppy (120K with DOS 1.0) and a color card with an RF Modulator.
Back in the early-to-mid 1990s some friends of mine and I were
comparing microcomputers we had over a roughly 15-year time span. Our
conclusion was that from 1976 'til then, it cost about US$3000 to buy
"the computer system you wanted", meaning what your computer system
eventually grew into. That usually included some sort of peripherals,
often bought after the initial purchase, and we were looking at an
IMSAI 8080, a couple TRS-80s (Model Is), an Apple ][+, an IBM PC/XT,
an Amiga 1000, and I'm not sure what else.
I think at the time I was thinking my 486/33 desktop PC was below the
curve (at about $2000), but I bought it from someone who was closing
his computer store so got a pretty good deal. (BTW, I think it's
on-topic now, it's still in use as a dial-on-demand NAT router, and
it's been on 24x7 most of the last 10 years. Yes, you can blame me
for last year's power woes in California.)
I'm not sure where things are today but I think prices have come down.
My last couple systems bought new for a purpose are notebook PCs, and
of course there's a premium associated with that. I'm thinking they
are something like $2500 and $2000, and the latter is an iBook that
hasn't cost me that much yet but probably will by the time I'm done
with it (I want to get it some more RAM, an Airport card, maybe a USB
stiffy drive).
-Frank McConnell
Check out this place in Oakland, CA:
http://www.linuxjournal.com//article.php?sid=6021
They are taking donated PCs, installs Linux on them a provides them to
schools, scientists, governments, non-profits, the underprivileged
and the handicapped.
They also are creating cluster farms which are being used in *very* cool
ways!
Cheers,
Bryan
Whilst i'm in a "fixing problems with my classiccmps" mood, does anyone
have a copy of the Decstation Ultrix Installation CD at home that they
could make an ISO file of for me, so I can resurrect my DS3100?
Thanks
Alex
--
My computer's heavier than yours.
Hi,
I have a secondhand T3100/20 and on the left hand side, the side where the
hard drive is, next to the A,B,PRT switch there is a small DIN socket.
Does anyone know what this does?
If it's the internal modem, how do I communicate with it please?
Many thanks,
Lawrence
>What I do for BGA protos is this:
>
>1. Solder the BGA(s) first!
>This is for a couple of reasons, its easier to inspect the soldering, and if
>you mess up the BGA soldering you can start with a fresh board and not
have to
>remove the BGA part. (Though I have removed and resoldered BGAs with pretty
>good luck)
>
>2. Build a "frame" around the BGA by soldering pieces of scrap circuit board
>material on all 4 sides of the BGA, leaving a little (5 mill) clearance on
>each side. I do this with pieces of paper as a shim that I later remove. This
>is the most critical part, the BGA part must be located in the right position
>on the PC by the frame. The 5 mill clearanec on the side is so the BGA can
>"float and settle" when the balls melt -surface tension will bring it into
>perfect alignment with the PCB pads. I do the frame alignment by setting the
>BGA on edge (vertical) against each of my frame pieces and checking the
>ball/PCB pad alignment.
So do you lay out the PCB with areas on the four sides to which you can solder
your "frame"?
>3. Put _A LOT_ of rosin core flux on the PC BGA pads. You dont need any
solder
>with the common solder ball type BGAs they have plenty in the balls.
>
>4. Heat from behind with a heat gun. I use a standard $59 Granger heat gun.
>This requires some pratice to avoid overheating the board. You can pratice by
>soldering small SMT parts to scrap or used PCBs. Moving the heat gun
around in
>a small circular pattern will help avoid PCB damage. When the Rosin flux
>really begins to smoke, the temperature is just about right. You can see when
>the BGA solder balls melt, because the BGA chip will sink about 1/2 mm. When
>you see it sink, Your done!
When you say "behind", I assume you mean the underside of the PCB, not the
top of the BGA? Does the board want to be laying flat so that gravity helps
or does the solder surface tension take care of it? I assume that you don't
press the BGA part down? I've heard that moisture from humidity can cause
problems, sometimes refered to as the "popcorn effect". What can you tell
us about this? I've heard it has to do with component storage...
>5. Checking: When the PCB is cool you need to remove the flux and inspect the
>soldering. If the BGA is soldered properly the solder balls will have a
>squashed appearance on all 4 sides of the BGA and you should be able see
>through all the interball rows in both directions by along the underside of
>the BGA. If the balls are not melted enough, you can re-apply flux and
re-heat
>The worst thing that can happen is that your frame is mis-aligned so far that
>the balls ended up stikinf to 2 pads and have have merged underneath the BGA.
>In that case you need to remove the BGA and try again (with a new part)
>
>
>I have not been 100% successful but am close to 85% good solders first
time...
Thanks for the advice. It doesn't sound too bad...
--tom
I've been playing around with cp/m-86, and was wondering if anyone knew if
a multiuser (like MP/M) version was available somewhere? My next step is
to try making it work under Dosemu on Linux if I cant...
-- Pat
> > > try to describe the scsi bus and termination.
> > > do a probe-scsi and a probe-scsi-all...
> > >
> > > let me know what that does.
>
> I'm pretty sure that there is a Sun screwup in the Ultra1 boot ROM such
> that "probe-scsi" doesn't work right when "auto-boot" is enabled.
>
> auto-boot?=false
After turning off auto-boot you need to type 'reset' and hit return, this is
true on both Ultra 1's and 2's. If the auto-boot is already off, you still
need to do a 'reset' before doing teh probe-scsi/probe-scsi-all.
Zane
On Apr 26, 10:19, Bill Pechter wrote:
> > I'm slightly puzzled by what you say about DEC X-11, though. My
exposure
> > to it and XXDP is only in the form of the diagnostics available to end
> > users and third-party service organisations, and I suspect there's more
to
> > it than that. The reason I think of XXDP as the OS and X-11 as the,
well,
> > application in a way, is that all I see are the X-11 modules to run
build
> > and series of tests, whereas XXDP includes the monitor, system handlers
etc
> > (as well as the diagnostic programs and utilites, of course). To me,
> > that's the OS.
> >
> > --
> > Pete Peter Turnbull
> > Network Manager
> > University of York
>
> You're exactly correct, except the XXDP doesn't have drivers for
> the comm gear and other stuff, whereas DECX/11 can have modules
> running simulating disk and tape i/o, comm i/o and can do task
> scheduling and timeouts. Also DECX/11 is interrupt driven where most of
> XXDP polls status registers.
Yes, I knew about the polled operation.
> I stretched my view a bit. DEC training called XXDP a diagnostic
> monitor... which was ok until the DS> diagnostic supervisor got loose...
> and the names collided.
>
> The XXDP monitor is single tasking, non-interrupt driven, polling and
> can hang forever waiting for an event that never comes. DECX/11 won't.
> DECX/11 seemed much more os-like. Batch streams do exist in XXDP
> (the .ccc chain files) -- but that's just minimal scripting.
Yes, .ccc is of rather limited use. Enough for sets of diagnostics and not
much more, really.
Thanks for the information -- I'm enlightened. Did DECX/11 ever make it
outside of DEC's walls, other than in the form of strings of modules for
field confidence tests?
--
Pete Peter Turnbull
Network Manager
University of York
Picked new in the box Apple II SCSI Card for II Plus, IIe, and IIGS, has
cool little wrench with the apple logo stamped in the metal.
New in the box System 6 IIGS.
New in the box HyperStudio for the IIGS, Version 3.1 with System 6.01.
Books - Introduction to Analog Computation by Joseph J. Blum, Mac
Internet Tour Guide with software, TEX for the BeginnerMicro-Computer
Handbook by Charles J. Sippl (from 1977), the Z-80 microcomputer
handbook by William Barden, Jr., Programming the Z80 3rd Ed. by Rodnay
Zaks and last VAX software Source Book Volume 2 Systems software, second
edition January 1985 by digital.
A Sega PowerBack for the Gamegear ($2.99) at a local thrift and from the
same place a Logitech joystick (digital 3D) for $3.99, and a cool
controller for the PS1 for $2.99.
Now for the wanted items - looking to complete my Mac collection that I
started years ago trying to collect one of each model from 1984 to 1995
for a total of 103 machines.
PB160 - working or not
Mac 512Ke
Quadra 800
WGS60
Performa 466, 467, 550, 275,, 560, 577,578, 658
Duo250, Duo270, Duo280,
Color classic II
610DOS
PM8100
WS6150, WS8150, WS9150
PB520c, PB540, PB540c, PB150
LC630
PF6110, PF6112, PF6115, PF6117, PF6118
6100/110
8100/100
If anyone has one or more of these that they would like to unload email
me off list at jrkeys(a)concentric.net. Thanks for reading.
Yesterday I was lucky enough to pick up an IBM 5150 at Purdue Salvage for
$0 (just before it hit the trash). After a bit of playing with it, and
trying a SVGA card with it (it had no video card in it when I got it, I'm
suprised the 16bit card works OK in an 8bit slot), I've gotten it to boot
into MS-DOS 5 (ick) and CP/M-86.
I now seem to have a problem with its second floppy drive... When I try
reading from any disk, I get a "Data error" in CP/M and DOS. I think that
the problem is the head not moving... I can 'format' a disk in CP/M in the
drive, but I don't hear the disk head seeking. These are IBM branded DSDD
(full height 5-1/4") floppy drives.
Does anyone have any info I can use to try and debug (and hopefully fix)
this problem?
-- Pat
> > > If it's a mainframe, then the campus is the enclosure,
> > > while if it's a desktop, it's pretty obvious what that is.
> >
> > Today that campus worth of hardware is emulated in the hercules
> > s360/370/390/ zSeries emulator http://www.conmicro.cx/hercules
> > running on a PC running linux or winbloZ
> >
> > OS, DOS, MVS, VM ... running on your pc, serves x3270
> > terms over the network etc etc.
>
> Ow! You're killing me!
What's the emoticon for the world's smallest violin?
You're breakin' our hearts!
;)
Free DEC R400X DSSI expansion chassis, plus a few other spare parts from
the one I scrapped out. It has no drive sleds, unfortunetly.
It is in Southwest Michigan, and you must come pick it up. I will not
ship this thing.
Please respond off list.
Chad Fernandez
Michigan, USA
>> I got this URL for an article in Scientific American that seems
> appropriate for this group :). The last paragraph reads:
>
> "Evidently, the something-for-everyone model epitomized by Heathkit and
> the Amateur Scientist column can't compete anymore. Specialized sources
> and Internet newsgroups cater to each skill level. But much of the
> mentoring and serendipity that the diverse community of amateurs offered
> has been lost. It is hard not to regret its passing."
Well, I didn't know this about Edmund Scientific. Crap. I've
been looking for the older catalogs, now even the more recent
ones I've got will become collectable unobtainium.
Where will I buy water wetter?
Where will I buy Nitonol wire?
Where will I buy flock paper?
Where will I buy cheap assortment of lab glassware?
Where will I buy an ultrasonic cleaner?
Where will I buy a good Chinese microscope?
and so on...
<sob!>
I was contacted by the below person regarding a PC Convertible. I already
have one so I'm passing this on to the list. Please contact Leigh directly.
Rich
-----Original Message-----
From: Bluewolf Creative Arts [mailto:bluewolf.creative@verizon.net]
Sent: Saturday, April 27, 2002 11:40 AM
To: rcini(a)optonline.net
Subject: RE: Adopted -- PC Convertible 5140
Hi Rich,
Yes you may put the word out that I have a very nice
one of these for sale - I'm thinking of putting it up on ebay to
seewho nibbles, but I will wait until you contact your collector
group first. Unfortunately I do not have a manual or any supporting
software disks, etc - just the machine itself - which boots just fine
and shows a window with commands at the bottom which I do not
really understand - in addition to load/save/ - which is easy enough-
there are commands for tron/troff/ and others.
Here's my site:
http://bluewolfcreative.com (still under construction)
Best regards,
Leigh
>-----Original Message-----
>From: Bluewolf Creative Arts [mailto:bluewolf.creative@verizon.net]
>Sent: Friday, April 26, 2002 8:47 PM
>To: rcini(a)optonline.net
>Subject: Re: Adopted -- PC Convertible 5140
>
>
>Rich, I recently acquired one of these machines also -
>it's an IBM PC Convertible 5140 in perfect condition...
>however, I am a mac person, so I am looking to sell
>this machine. Are you interested? It came without
>the printer but the external power supply works just
>fine... no manual... it boots up just fine - tried some
>dos commands but no luck - how does one work
>this thing? It's pretty cute - looks like new...
>
>Leigh in Palm Springs CA SA
Thank you to everyone who responded to my ad to sell my Mark-8 kit. For
anyone interested in the boards or additional parts, here is the man to
contact:
Steve Gabaly
Apalachin, NY
old_computers(a)yahoo.com
Steve's a good guy and has painstakingly created his Mark-8s and parts, etc.
His CD contains a wealth of great info including a copy of the original Radio
Electronics article, a supplemental 47 page construction article, a 50 page
manual detailing his experience and hints debugging this computer (with many
photos and full scans of completed boards), and about 200 pages of the Mark-8
newsletter (the first real computer hobbyist newsletter that kept all the
early pioneers informed before Byte came out, its a treasure chest of
historical information about the Mark-8 and other early computers, the
January 1975 issue is especially interesting, this is when the Altair was
introduced).
Best,
David Greelish
Classic Computing
www.classiccomputing.com
"classiccomputing" on eBay
Hello everybody. I should like to probe the HP2100 simulator available
under Bob Supnik's SIMH. Is there any software repository available
for this machine ? I know the Jeff Moffat's website programs only,
but somebody spoke here some time ago about some other place where
to get software for this machine.
Greetings
Sergio
Hello my name is Colin from (UK) i also have just got an Amstrad ppc640 just
for messing around on.... but it doesn't have any operating system on it and
won't recognise any disks as when i boot it up it always says invalid system
disk... i am using both 720k diskettes and have tried 1.44meg and tried
putting all dos versions and windows 95 onto it.... any advice would be most
grateful....
Yours...
Colin
E-mail ---- GColinwg(a)aol.com
> SCOPE and Kronos were based on Chippewa. COS was largely
> written by Seymour Cray; in particular, MTR is known by
> programmers who worked on it later to have been written
> completely by Cray. He and one or perhaps two others did
> it between June and December 1964.
I should point out here that Cray's MTR continued through
NOS/BE 1.4 or later, but the Kronos version was rewritten
>from scratch by Greg Mansfield.
-dq
> Chippewa??? I don't remember that one. I remember SCOPE
> and, later, KRONOS.
SCOPE and Kronos were based on Chippewa. COS was largely
written by Seymour Cray; in particular, MTR is known by
programmers who worked on it later to have been written
completely by Cray. He and one or perhaps two others did
it between June and December 1964.
It was not meant to be a product. The *product* operating
system to be bundled with the machine was SIPROS. SIPROS
used an assembler named ASCENT that used different mnemonics
thsn COMPASS, which was the assembler under SCOPE and Kronos.
COS was written in octal. The source consists of two octal
numbers, a load address, two spaces, and the value at that
address. Further to the left in the traditional "comment
field" area is indeed a comment field, so the COS octal
source at least has some comments. There is a CP program
named APRAB that assembles these octal sources to binary.
COS also included Garner McCrossen's RUN compiler, which
handled both FORTRAN II and FORTRAN IV, as well as embedded
assembly language.
The first versions of the display console programs DSD and
DIS come from Chippewa, as well as the control cards
COPY
COPYCR
COPYCF
COPYBR
COPYBF
COPYSBF
REWIND
VERIFY
LBC
LOC
PBC
DMP
plus concepts like the dayfile, control points, combined
input & output (CIO), and the RUN compiler continued to
be available in the later SCOPE and Kronos.
You can read all about it at
http://www.spies.com/~aek/pdf/cdc/60124500_ChippewaOSref.pdf
-dq