From: John Ott <jott(a)hamming.ee.nd.edu>
>I don't have your email address. So, do you still have the schematics
>of your 2901C version of the z80? Have you done any stack based cpu's
>with bit slice chips? (e.g. something to run native forth code on )
>
>john
I do still have them. No, I wont publish the notebook that contains the
collected wisdom. I did this a lot of years ago.
My $.02 2901 was an ok device but slow and turned out to the the
speed limiter. Also the microcode for was a pain! Never did a stack
cpu though the PDP-11 does that very well as is.
Allison
I dunno, I suppose that it's really Craig's perogative to do what he wishes,
its his crud.. Old, yes, potentially interesting, yes, but above all; his. A
good example would be a lot of the crud I've pitched because I didn't have
the time to screw with it, or stuff I've picked up cheap because I expressed
interest in it and the surplus guy said "you want it, then get it outta here
today and I'll make it cheap". Besides, in my dealings with him I've never
had any reason to dislike him, nor does your average a-hole rack up 667
positive feedbacks!
Will J
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
Got an interesting mail from a fellow who has a "PMC MicroMate" CP/M
computer, and was wondering about it. The specs are neat - it's a fast Z80
(4MHz), but has 128k of RAM (so I guess it's CP/M-Plus, or a heavily
modified version of 2.2), an internal 400k floppy and some sort of interface
for three external drives. Am asking for details on the external drive
interface. The machine doesn't sound familiar to me, but it sounds like a
neat little thing - it's just a boxen, you need a TTY.
---
azog at azog dot org
Fools! You have no possible idea of what power you toy with! Release the
pig!
What would the approximate value of a Convex Exemplar SPP-1000 be? 2 nodes
(16 processors), 2GB of memory, a few gig of disk, most manuals and
software, big n cool lookin'.. been offered one but don't know if the asking
price ($5K) is worth it...
Will J
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
From: Iggy Drougge <optimus(a)canit.se>
>
>People always seem to forget the poor Dragon. Of course, it was
essentially a
>CoCo, or so they tell me.
Both were the Moto app note for the 6809 and friends.
>When was the 6809 released? Wasn't that about the same time as the
68000?
Before the 68k. The 68k was late and moto needed something in between.
Allison
On May 4, Clint Wolff (VAX collector) wrote:
> In terms I understand, what's a J90, and what's it worth?
A used, operational J90 is worth anywhere from ~$8K-35K depending on
configuration.
Here's some quick info:
Type: PVP (parallel vector processor)
CPUs: 4 min, 32 max
CPU architecture: YMP family binary compatible
Memory: 4GB max
Disk: unbelievably huge quantities possible
Performance: 200MFLOPS sustained per CPU
Word width: 64 bits
FP capabilities: 64 bits single-precision, goes up from there
Vector element depth: 64 elements
Cooling: air
Power: 220V split-phase, about 3-4KW depending on config
OS: Unicos (SystemV variant)
Languages: C, C++, Fortran77, Fortran90, others
I have a relatively large J90 here. Pics of it can be seen at
http://www.neurotica.com/cray/mine. I absolutely love this machine.
It is, for lack of better descriptive terms, UNCOMFORTABLY fast when
crunching numbers.
-Dave McGuire
From: healyzh(a)aracnet.com <healyzh(a)aracnet.com>
>
>I don't think the VAXstation 3100/10 is later than a M76, and it's got
that
>oddball connector. I thought it was the other way around. Also either
the
>DECstation 2100's and/or 3100's used the same cable.
The VAXstation if memory serves is later. The MV and DECserver3100s
were SCSI-II and before the M76 though the difference was less than a
year.
Allison
On May 4, healyzh(a)aracnet.com wrote:
> > >Is anyone else having a problem with mails coming from
> > >ard(a)p850ug1.demon.co.uk? They come out blank on my end.
> > >Bob Mason
> >
> > Yes. That is Tony (Hi Tony!) and for some reason they come out in Opera 5.x
> > as just an attachment that is unopenable (strange but his are the only ones).
> > --Chuck
>
> Strange, they're just fine in 'elm'. Last I checked they were also fine
> under Eudora 4.0.2/Mac.
Fine in VM under xemacs here..
-Dave McGuire
knightstalkerbob(a)netscape.net (Bob Mason) wrote:
> Is anyone else having a problem with mails coming from
> ard(a)p850ug1.demon.co.uk? They come out blank on my end.
No. But Tony's mailer is inserting a header
Content-Type: text
...which isn't valid according the the MIME spec, but then there
isn't a MIME-Version header either so it your mailer shouldn't
be trying to interpret it as a MIME content-type.
-Frank McConnell
Can anyone tell me what the differences are between a KXT11-A, -AA, -AB *
-CA? I know -A? is dual wide, and -C? is quad wide, but other than that?
BTW...how would one get Micropower Pascal for one of these?
Ken Seefried, CISSP
Found this on usenet. Someone has kludged up an IDE interface for the
Apple II (!). Schematics and software for the interface can be found at:
http://s.guillard.free.fr
Apparently the thing costs about $5 in parts to put together.
- Mike
OK... from visiting various Comptometer sites (including a museum by
Victor themselves), this unit appears to be c. 1961, and is powered by
a 100-130V motor. The power cord is like nothing I've seen - three
brass rods, the middle one (earth), fixed, the outer two slightly
floating, about 1.25 cm long, 2-3 mm in diameter, spaced at about 1.25 cm
on centers, nearly, but not entirely, in line. The outer two conductors
are slightly farther apart than a modern Continental 220V plug.
I can tap in power internally, I can maybe use insulated alligator clips, but
mostly, I'd like to find a proper mains cord for this. From manually operating
the innards, it needs cleaned and oiled, but that's to be expected.
-ethan
=====
Visit "The Seventh Continent"
http://penguincentral.com/penguincentral.html
__________________________________________________
Do You Yahoo!?
Yahoo! Auctions - buy the things you want at great prices
http://auctions.yahoo.com/
From: jpero(a)sympatico.ca <jpero(a)sympatico.ca>
> From: Brian Chase <bdc(a)world.std.com>
>
> And then it'd be rather fun to implement your very own 6502 using 74*
> series logic chips.
>Possible, but length of traces to wire all those together will keep
>it to KHz range and needs few large boards that needs so much power
>that hottest athlon cpu is low power by comparsion.
It would eat power but it would not be that slow. The mos logic of
the time was quite slow compared to the ttl of the time.
I did do a 2901C version of z80 and it was much faster than the MOS
version, not due to the 2901s as they were logic savers but the
acutal speed bottleneck as well.
I have seen photos of apple IIe prototype laid out on early
pre-production logic board, one of that 40 pin chipset socket is
hooked to a equally same size board filled to the 4 edges with
tightly packed TTLs and few large ICs, I think it was shown in Byte
as well as few other publicatons. Large board full of chips vs. 40
pin IC, same thing...Amazing!
That was replaced by a 2000 or so gate array so thats were it
all went. Also the proto was built of all SSI TTL making it less dense.
I did some work like that in the early 80s. Logic was faster than
you think. It's true to get to the sub 100ns range for serious
cpus you have to get the interconnect problem out of the way.
However for a fairly fast machine (4-10mhz clocks) there are
many examples that are mostly ttl. For starters the PDP-8E
ca. 1971ish executes instructions in 1.4uS for the base modes
and that was SSI ttl on low density boards. FYI it was limited
by the core cycle time not the TTL, I ran one at nearly twice
speed easily with semicon memory.
Allison
OK. It looks like it will take a while to sort through this stuff from my last
haul but I will post some of the more interesting items(to me anyway) as I run
across them. A few of the items were from Bell Atlantic(Sorbus) and deal with
maintenence and diagnostics.
One box I found included a TK50, RX50, and 9-track tape diagnostic software. I
know there is a manual that goes with this in the pile somewhere as well. The
media is labled "Pro-Cure/OSD V1.3"
Anyone familiar with this?
I also have found many diagnostic dongles for serial/ethernet diags.
Also lots of color sales brochures on pretty much the whole VAX line.
I should have my website back up in a week or so completely redesigned. I will
slowly be adding pictures ands scans from many pieces in my collection. I am
inviting any of the 'DEC archivers' from the list to feel free to contact me if
I can fill in any of the holes in software or docs.
Recent additions are a VAX 4000/200 (this weekend) and beleive it or not I think
I found a CR11.
If anyone can help me, I am still looking for a front panel for my DSSI microVAX
3800. Someone on the list said they had one but I can't remember who. Also I
need a front panel for a PDP8a. Unfortunately it was wiped out during the trip
back.
Brian.
--
Brian Roth - System Administrator
www.webwirz.com - Old Computer Repository
Preoccupation is my main occupation.....
On May 4, Richard Erlacher wrote:
> My first prototype of my all-digital clock-data separator circuitry was
> wire-wrapped and operated nicely at 80 MHz. The speeds mentioned by Emanuel are
> certainly realistic, and certainly not the upper end of what was done with
> wire-wrapped high-speed logic.
I have to agree with Richard here. Back in 1986/87, I worked on the
Navier-Stokes Supercomputer project at Princeton University...the
prototype processors for that machine were wire-wrapped (most of the
boards by me! 8-)) and signals ran between 20-30MHz. We had no
problems at all. We used twisted-pair wiring for some of the clock
lines as I recall, but the vast majority of the wiring was simple
point-to-point wirewrap with no special routing considerations of any
kind.
Don't knock wire-wrapping...it's fast, easy, works very well, and
properly done and cared for, it will last for years. And if you're a
weirdo like me (and I know some of you are) it can even be FUN! 8-)
As an interesting side note, that supercomputer (the project is
still underway from what I'm told, undergoing various refinements to
keep pace with advancing technology) is built on Unibus-form-factor
boards, using PDP11/24-style expansion chassis. It was a cheap and
easy way to get nice, compact chassis with high-quality power supplies
and very well-known (and large) board geometries.
-Dave McGuire
On Wed, 2 May 2001, you wrote:
> On 2001-05-01 classiccmp(a)classiccmp.org said:
> >On Wed, 25 April 2001, John Keys wrote:
> >> Picked the issue at the news stand today that had the 2 page
> >>article on classic computers staring our own Sellam Ismail. It
> >>was fun reading and now I have to see this former car plant that
> >>serves as your warehouse. I have to get me rich uncle so that I
> >>can get that kind of space. Articles like this are great for our
> >>collecting efforts as more and more people learn about they seek
> >>us out to donate their old computers. Keep up the good work.
>
> Is it possible to put a scan of this article online somewhere?
> This magazine isn't available over here...
I'm not able to do a scan just yet but here is a URL where an abstract of
the article can be found. Mind you, it's a very small excerpt. The full
article is two pages.
http://www.archaeology.org/curiss/abstracts/scene.html
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
Can't believe my luck having found an Apple /// with HDD and /// monitor for
not even $30 at a local fair here in Belgium. The guy had a whole pile of
them. He even "forgot" his only DOS system disk in my drive...
A once in a lifetime chance...
The_Applefreak
Hi,
I bought a Toshiba T2000SX laptop PC a while ago. This was made in early
1991. 16 MHz 386SX CPU, 1MB RAM on board with another 4MB on plug-in memory
card. Monochrome LCD screen, with VGA port on rear for connection to monitor.
Anyway, there seem to be two problems with it. Other than these, I can boot it
>from floppy disk and (just about) read text on the screen.
- The LCD backlight does not work. Is there a special key combination to turn
it on? Assuming it is faulty, how would I open up the screen; there doesn't
seem to be an easy way to do that.
- The supplied hard disk was a 40MB 2.5" Conner CP2044PK, seemingly
defective; it made funny noises when powered on. I replaced this with a
known-good Seagate 500MB drive. Still no luck, that drive is not
recognised. Perhaps the on-board IDE controller is faulty, or the machine's
BIOS is hard-coded for certain specific drive types?
Does anyone have any ideas?
-- Mark
I have this PDP-8/e with at least 12K of core, a spare KK8E board set I could
throw in a PDP-8/a box, and an RK8E on the way. The RK8E isn't coming with its
own set of module interconnects and I don't have any spares. Has anyone come
up with a decent substitute? I've only ever seen shallow edge connectors,
but I suppose they'd do.
I restored an H-11 that had been turned into a hex-wide box with home made
CD interconnects on one end (for an RLV11) by my old boss. He used Heathkit
backplane connectors (I have an unsoldered backplane from his spare parts
bin). I suppose if I had enough of them, it'd be worth manufacturing a
board to make it all more reliable (his were wire-wrapped).
Any suggestions?
-ethan
=====
Visit "The Seventh Continent"
http://penguincentral.com/penguincentral.html
__________________________________________________
Do You Yahoo!?
Yahoo! Auctions - buy the things you want at great prices
http://auctions.yahoo.com/
From: Brian Chase <bdc(a)world.std.com>
>There is no VAXstation 3100/10! You might mean a VAXstation 3100/M30
>(a.k.a. the VAXstation 3100) or the MicroVAX 3100/10. The former has
the
>weird 68pin connecter, the later... well I don't know. I don't have one
>yet.
Likely he's lumping Decserver, Vaxserver, decstation and vaxstation
all in one pot. Some are similar, some are not! Also the model number
does not give away design date and the SCSI-II 50 pin systems were
earlier than the HD68.
Allison
From: Chuck McManis <cmcmanis(a)mcmanis.com>
>At 07:16 PM 5/3/2001 -0400, you wrote:
>>Only on the M76 and later machines.
>
>Tell that to the VS3100/M30 :-)
>
>I'm guessing its all VAXStation machines but its hard to be sure.
Vaxstation, Microvax3100 or Vaxserver3100 all mostly the same or similar.
>is a brass door that covers the card cage. Now I'm looking at one that
has
>a brass plate that covers both the card cage and much of the drive area.
>When was this introduced?
It's not brass it's Cd plated steel. Mid 80s. The first versions was
PDP-11
populated.
Allison
From: Chad Fernandez <fernande(a)internet1.net>
>BTW, I have an M3104. It's supposed to be an 8-line Asynchronous
>Multiplexor, with DMA. What does that mean/Do/etc?
>
>Chad Fernandez
>Michigan, USA
Eight serial ports that can run at full bore with minimal cpu drain.
Great for modems and serial interfaced printers.
Allison
From: Eric Dittman <dittman(a)dittman.net>
>> The SCSI connector on the back tends to be flaky on the MicroVAX
3100s?
>> Hmmm...that knowledge will save me a lot of frustration. Thanks...
:-)
>
>No, the SCSI connector is just a strange DEC-only format. It
>looks like a 68-pin SCSI connector, but it's not. You'll need
>the special SCSI cable to use external devices.
Only on the M76 and later machines.
Allison
On May 3, Chad Fernandez wrote:
> BTW, I have an M3104. It's supposed to be an 8-line Asynchronous
> Multiplexor, with DMA. What does that mean/Do/etc?
It's eight serial ports that use DMA (Direct Memory Access) to
transfer blocks of characters to/from buffers set up in the host
processor's memory. Using DMA is a way to improve the performance of
an I/O subsystem by reducing its dependency on the host processor for
moving data back and forth.
-Dave McGuire
From: emanuel stiebler <emu(a)ecubics.com>
>Will Jennings wrote:
>>
>> Paul,
>> I too can confirm that it should work; the 11/23+ sitting next to me
is
>> running 5.2FB and it has an RQDX3.
>
>Since when do you have any running pdp11 systems ?
>;-)
>cheers
Well I do have a running PDP-11 (various) and at least two have RQDX3s.
If a RQDX2 works the 3 will too.
Allison
From: Peter Kukla <fruviad(a)coil.com>
>The SCSI connector on the back tends to be flaky on the MicroVAX 3100s?
>Hmmm...that knowledge will save me a lot of frustration. Thanks... :-)
>
>Peter
Not really. Older 3100s used the 50pin cannon connector which is
standard
for SCSI-I and SCSI-II. The later 3100s like the M76 used the oddball
68pin HDB,
and I'd add long before PCs did!
I know this as I have a bunch of 3100s and.
Allison
>
>
>Zane H. Healy electronically enscribed:
>>
>> >Well, since the concensus seems to be that I'll need to get a
CD-drive for
>> >this thing, I guess I'll start looking.
>>
>> Remember it needs to be one that supports 512-byte blocks, instead of
the
>> standard 2048-byte. If it's Sun-Bootable, it should work just fine.
Since
>> I suspect you've got a wacky SCSI connector on the back of that
machine
>> you'll probably want to pop the hood and plug the CD-ROM at least
>> temporarily into the internal cable.
>>
>> >I did sign up for a DECUS membership a few days ago...never heard
anything
>> >back from them, so I'll wait a few days and resubmit my signup if
nothing
>> >materializes from them.
>>
>> I've heard people have been having trouble, it might actually take a
phone
>> call from what I've heard. BTW, my membership had expired over a year
ago,
>> and I was still using my ID to get hobbyist PAK's.
>>
>> Zane
From: Megan <mbg(a)world.std.com>
>
>>Have you seen http://www.irlp.net/? They are linking local amature
radio
>>networks together using the internet as a backbone. Not 20 or 40
meter,
>>but interesting non-the-less.
>
>Heard about it for the first time today, talking with drive-time
>friends on the local 2m repeater. One person was quite enthused,
>but others were somewhat hesitant -- "It's not real ham radio, since
>you use the internet for the real hop" and "Why not just use your
>cell phone, it's no different."
That and Amateur radio still has rules regarding commercial and third
party
traffic.
Reminds me of the linkages I did 30 years ago with copper lines (phone).
same old thing.
Allison
Newbie here...apologies if this is a stupid question.
Background: I'm a unix-geek who has used VMS in the past, but never
done any VMS administration. Naturally, when I got the opportunity
to possess my own MicroVAX 3100, I leapt at it!
I managed to get a terminal for the VAX and figured out how to boot
it, via "BOOT DKA300" at the >>> prompt. This gave me a boot sequence
of some sort, terminating in an OpenVMS 6.1 tagline and a "$" prompt.
Unfortunately, once I got to this point, I was at a loss about what
to do next. None of the VMS commands I enter are recognized as valid
commands...they all return the error:
%CLI-W-IVVERB, unrecognized command verb - check validity and spelling
I haven't been able to find anything on the web that tells me what to
do next. I've even left the box running since I booted it last night,
for fear that turning it off will corrupt a mounted filesystem.
Anybody out there know what I'm not doing right, or have a URL that
points to a site for a beginner-Admin of a VMS box?
Thanks...
Peter Kukla
Hi,
Although not yet 10y old ......... And no big Iron .......
I Got a DEC 325SL Laptop (386SL 4MB Mono-LCD) from
a friend to fix but .... the poweradapter got lost.
I dunno if the batteries are still alive but I want to give it a try.
Does any body know:
1 The adapter output voltage?
2 The max. current the adapter must supply?
3 The polarity of the output ?
(It's got a female powerjack connection "(o)"style)
If I can get it working, I might try to install Linux ;=)
Anybody got any hints on this?
Regards
Sipke de Wal
---------------------------------------------------
http://xgistor.ath.cx
---------------------------------------------------
At 08:22 AM 5/2/01 -0600, Robert Feldman wrote:
>Flooding can be blocked if you take advantage of proxy bidding. Just decide
>what your _maximum_ bid is, and enter that amount (near the end of the
>auction, if you want, but not at the last second). Your actual bid will only
>be the minimum increment above the next highest actual bid (and not
>necessarily what you are willing to go up to).
-snip-
And at 07:51 AM 5/2/01 -0700, Marvin wrote:
>The short answer is yes. The DNF (Discuss Newest Features) board has a
>sniping contest at 22:22:22 PDT Ebay time and the highest I've seen is 39
>posts in that one second. And to say again, sniping only works against
>bidders who either do not know or are not willing to bid what an item might
>be worth. I think that "stategy" you are talking about is just ignorance of
>the system.
Sigh. You guys are taking the position of lots of economists when
discussing real-world markets, saying that the theory supports
the well-behavedness of the market and neglecting the fact
that the assumptions that were necessary to prove the theory
do not apply to the real problem. In the auction institution
that eBay uses, which is technically a demand-side bidding,
raise-only, interactive auction with sealed bid caps and
fixed increments, for the clearing price to reflect the actual
market price you need many assumptions, not the least
important of which is something called "rational bidding
behavior". That means that the buyers have done their
homework, examined their costs and benefits and determined
an optimal strategy (i.e., a "maximum price" in the case
of single lot auctions as in most of eBay auctions) that they
are willing to pay. However, it takes only _one_ irrational
buyer to bias the clearing price by the minimum price
increment, and it takes only _two_ irrational buyers to
transform the auction into a game whose payoff (or rather,
whose negative payoff) will be bounded only by how stupid
the buyers are.
Bidding contests are proof of irrational behavior in eBay
and it happens all the time. There is a definite psychological
component that fuels the escalation of the price: "I want
to win even if it makes no sense financially". There is
an inherent time dimension in the problem because when
people lose the high bidder position they convince themselves
to bid even more although they had decided on a max price earlier.
Because of this time dimension, the longer the price stays high,
the likelier it is to go up further. It is simple psychology,
and undoubtedly irrational. But that's how it is, and there
is nothing that you, as a buyer, can do to change the behavior
of such bidders. However, you can mitigate to some extent the
effect that such buyers have on the clearing price by bidding late
in the auction, giving them less time to convince themselves
to raise their bids. Thus sniping is born. Sniping is a
sensible strategy in an eBay auction with irrational bidders.
It has the effect of transforming the auction institution
into something of a sealed bid auction, which can really mitigate
the effects of irrational bidding. Furthermore, because
irrational bidding tends to be specific to a particular auction
(it doesn't necessarily carry over to set the price of
subsequent auctions, because of the "bidder remorse" issue),
repeated auctions will tend to stabilize closer to the fair
market value.
The fact that sniping is a standard mechanism used by lots
of buyers on eBay just proves what everyone doing
experimental economics has observed again and again:
if there is one way to game the system, it will be found,
and, once it is found, the strategy will spread and become
commonplace.
At our group, we have used experimental economics tools to
analyze the behavior of open energy markets. We have tried
almost every auction institution (first accepted offer,
first rejected offer, discriminatory, Vickrey, variants of these,
you name it). Even though the experiments are carefully
setup to prove or disprove a given hypothesis, we are always
amazed by the range of unexpected, highly creative
behaviors that we had not thought of. If you care to
read about our group's work, here's our web site
http://www.pserc.wisc.edu/
and our web-based experimental economics market simulator
http://www.pserc.cornell.edu/powerweb/
Carlos.
--------------------------------------------------------------
Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org
You can now get xtrs version 4.5, a Radio Shack TRS-80 Model I/III/4/4P
emulator for Unix and the X Window System, from my TRS-80 Web pages:
http://www.tim-mann.org/xtrs.html
Version 4.5 adds emulation of the remaining undocumented Z-80 instructions,
along with several other small improvements. See the included ChangeLog
for details. This may be the final version, since I'm running out of
ideas (and documentation) for TRS-80 peripherals to emulate.
General xtrs blurb:
xtrs is a Radio Shack TRS-80 Model I/III/4/4P emulator for Unix and the
X Window System. It includes lower case, the real time clock, hi-res
graphics, serial port, parallel printer, mouse, cassette, sound and music
output (requires OSS), 5" and 8" floppy disk drives in single and double
density, and even hard disk drives. The emulated floppy and hard disk
file formats are compatible with the popular MSDOS-based emulators by
Jeff Vavasour, Matthew Reed, and David Keil, and (if you choose a capable
enough file format), all features of the original TRS-80 floppy disk
controller are emulated. Under Linux, physical floppy disk drives are
also supported. Physical cassettes can be read and written too. The
user interface is a bit spartan, but it gets the job done.
Tim Mann tim.mann(a)compaq.com http://www.tim-mann.org
Compaq Computer Corporation, Systems Research Center, Palo Alto, CA
All,
Having some problems with my beloved NeXT. I'm *hoping*, perhaps
unreasonably, that they are related to the internal hard drive. I want to
try replacing it with a different one. Here's what I'm looking for:
Very Reliable
Low Power consumption/heat dissipation
3.5 inch
50-pin SCSI
550 Meg < capacity < 2 Gig
Inexpensive
Recommendations? Both drive model, and where to get one? I have an
RZ26 which would probably be perfect, but I hate to use up a DEC drive in a
non-DEC machine, having heard of the trouble folks have had trying to go
the other way. (Still awaiting CD and User ID number from Mentec and
Encompass, respectively.)
Other (possibly pertient) info:
Machine is a 68040 cube, non-turbo. Its drive bays are big enough
to accomodate 5.25 inch drives, but the lower bay contains an optical and
the upper bay contains a floppy *and* the internal hard drive. There is an
external case with a pair more hard drives and some pretty questionable
cabling, but the fault has appeared with that whole setup disconnected
(though not lately).
Internal hard drive (and floppy) are cantilevered between a pair of
plastic plates that are screwed to the inside of the drive bay. The
cantilever is formed by a set of mounting screws that go from the plastic
to the drive screw holes via plastic stand-offs. I'd say it's pretty likely
the drive is electrically isolated from the chassis except for the power
plug ground. I'd say it's extremely likely the drive is thermally isolated
>from the chassis, so it's entirely air-cooled. The fan is circulating air
in the volume where the drive is hanging.
Fault appears during heavy disk activity only. Can happen as a
consequnce of
find / -name .nfs ....
for example, which appears in the daily cron job (sigh). Can also happen when
find / -name .nfs
is entered from a terminal session. Things like
cd /
du
can produce "segmentation fault" errors as well.
/private/adm/messages log file shows unsettling things like:
May 3 10:16:05 mtapley2 mach: unexpected kernel page fault failure
May 3 10:16:05 mtapley2 mach: trap: type 0x410 fcode 5 rw 1 faultaddr
0xb570101a
May 3 10:16:05 mtapley2 mach: trap: pc 0x4001ada sp 0x3fffb0c sr 0x2000
May 3 10:16:05 mtapley2 mach: trap: cpu 0 th 0x101b2030 proc 0x101b1af0
pid 210 pcb 0x101b2230
May 3 10:16:05 mtapley2 mach: traceback: fp 0x111d5fb0
May 3 10:16:05 mtapley2 mach: called from pc 0x040f15c6 fp 0x00000000
4-args 00000001 b570101a 00000000 00000000
May 3 10:16:05 mtapley2 mach: last fp 0x0
May 3 10:16:05 mtapley2 mach: panic: (Cpu 0) MMU invalid descriptor during
table walk
(Is this consistent with a soft hard-drive failure, or am I barking up the
wrong tree entirely?)
Sometimes during attempts to reboot after fault, monitor shows file systems
clean but then I later get a panic - requiring fsck for the next reboot.
Fsck often has to be run repeatedly. (Fsck represents fairly heavy disk
activity. Sigh.)
Fault has not appeared within 30 minutes or so of powering the
machine down and leaving it to cool for 10 minutes or so, so may be at
least partially due to thermal problems.
Advice or recommendations for things to try are welcome. Thanks in
advance for any form of help.
- Mark
Paul,
I too can confirm that it should work; the 11/23+ sitting next to me is
running 5.2FB and it has an RQDX3.
Will J
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
From: Eric Dittman <dittman(a)dittman.net>
>> MicroVAX 3100/20e...I couldn't get it to boot, except into Standalone
BACKUP
>> mode. When the box boots, it reports that it's finding the tape
drive,
>> DKA300, and DKB200.
>>
>> I tried Eric's suggestion, but no luck. My guess is that I need to
get
>> the OS on TK50 tapes and find out whether the 2nd disk is even alive,
but
>> I have no idea where to get VMS on tape. I've been playing with intel
>> hardware for years, but this is the first time I've ever experimented
with
>> VMS.
>
>I don't know where to get VMS on a TK50 at a reasonable
>price, but if you have a CDROM drive you can order the
>OpenVMS Hobbyist CD Media from www.montagar.com/hobbyist/.
Anyone with the cdrom can cut a tape if they have a TK50 as there is no
real
restriction on where the media containing VMS install comes from.
However
it will likely be several tapes.
Am alternate method is to clone the disk (use backup/image) and send
the disk (RZ25 is plenty big enough). Or the Cdrom can be copied to an
inited RZ25 and the install done from there (you need two drives).
The 3100 owner will have to get his own license packs, thats a matter
of joining DECUS or their new name Encompass.
Allison
From: Michael Nadeau <menadeau(a)mediaone.net>
>PMC made a crappy TRS-80 Model I clone called, I think, the PMC-80, but
this
>is obviously a different machine. I'll see if I can come up with
anything on
>it.
Crappy TRS-80???? The only thing they didn't copy were the shortfalls
and bugs!
I think the L-systems (aka Ldos people) did it better.
Allison
Its interesting to note that of the three PDP8e's that have sold on Ebay this
past few months, the winning bids have dropped from close to $2000 to just
under $900.
Brian.
--
Brian Roth - System Administrator
www.webwirz.com - Old Computer Repository
Preoccupation is my main occupation.....
I said:
> with names like Color Genie....
I meant to say Video Genie.
--Doug
=========================================
Doug Coward
@ home in Poulsbo, WA
Curator
Analog Computer Museum and History Center
http://www.best.com/~dcoward/analog
=========================================
"Billy D'Augustine" <azog(a)azog.org> said:
> Got an interesting mail from a fellow who has a "PMC MicroMate" CP/M
> computer, and was wondering about it. The specs are neat - it's a fast Z80
> (4MHz), but has 128k of RAM (so I guess it's CP/M-Plus, or a heavily
> modified version of 2.2), an internal 400k floppy and some sort of interface
> for three external drives. Am asking for details on the external drive
> interface. The machine doesn't sound familiar to me, but it sounds like a
> neat little thing - it's just a boxen, you need a TTY.
I just moved and things are difficult to find,
but I did find my MicroMate, just couldn't find
the user manual. The external disk interface is
(I assume) pretty standard, consists of a PC
board edge with 34 plated fingers (17 on each
side) spaced .1" on center.
The MicroMate system disk has a cool utility
that allows you to configure any of the external
drives as one of about a half dozen different
CP/M disk formats. The details escape me until I
find that user manual.
"Michael Nadeau" <menadeau(a)mediaone.net> said:
> PMC made a crappy TRS-80 Model I clone called, I think, the PMC-80, but this
> is obviously a different machine. I'll see if I can come up with anything on
> it.
Actually, Personal Micro Computers had just
the opposite problem. They started with the
PMC-80 that included a built-in cassette drive.
Then they came out with the PMC-81. As I
understand it, these were sold around the world
with names like Color Genie, TRZ-80, etc.
Then Tandy sued them. In what was the first
case of firmware infringement, Tandy said that
the keyboard input routine was a little too
close to the original (or words to that effect).
http://www.slwk.com/papers/paper3.htm
That is when they came out with the PMC-101
"MicroMate".
I have all three machines.
Regards,
--Doug
=========================================
Doug Coward
@ home in Poulsbo, WA
Curator
Analog Computer Museum and History Center
http://www.best.com/~dcoward/analog
=========================================
>Have you seen http://www.irlp.net/? They are linking local amature radio
>networks together using the internet as a backbone. Not 20 or 40 meter,
>but interesting non-the-less.
Heard about it for the first time today, talking with drive-time
friends on the local 2m repeater. One person was quite enthused,
but others were somewhat hesitant -- "It's not real ham radio, since
you use the internet for the real hop" and "Why not just use your
cell phone, it's no different."
I checked out their web site, and am bothered by the fact that they
install the software (they do) after you have installed linux on
your system... I asked if the source is or would be available at
some point and haven't gotten a response... I don't install any
software on my linux box that I can't get the source for... and
I certainly will NOT allow someone else to install binaries on
it...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+
Hello, all:
I was contacted by this chap in NW London about a boat load of classic
inventory. I've put my bid in for certain items already.
Contact Gen directly for more specifics.
Rich
-----Original Message-----
From: gen [mailto:gen@webline.plus.com]
Sent: Wednesday, May 02, 2001 4:43 PM
To: Cini, Richard
Subject: Re: Computer collection
Hi Rich
Thanks for your reply. I've included a complete list here in case there is
anything at all you're interested in...
As I said before, I have a substantial collection of 'antique' computers,
mostly 'first editions' of systems such as Apple, IBM, Sirius, Apricot,
Macintosh, Epson, etc. These are not old and used, they are mostly in
pristine condition in their original boxes with manuals, software and
literature. The only reason I'm selling is that I have to move house and
will not have enough room any more.
If you are interested please let me know. I am open to offers for the whole
collection but, realistically, I expect people will be more interested in
one or several individual items. In that case I'll probably hang on to some
things.
Please make me an offer on any items you are interested in . You would need
to collect or pay for carriage from NW London (UK).
Please also pass this on to anyone else who may be interested.
Thank you.
It's a long list, you have been warned!....
----------------------------------------------------------------------------
APPLE MACINTOSH
================
Hardware:
------------
Apple Macintosh 128K computer including keyboard and mouse
Apple Macintosh 512K computer including keyboard and mouse
Macintosh external disk drive
Apple Macintosh keyboard (128K style)
Apple Macintosh mouse (128K style)
Mac Daisywheel Connection
Apple Macintosh Plus including keyboard and mouse
Apple Imagewriter Printer
Apple Macintosh II including keyboard and mouse
Apple Macintosh II monitor
Apple Macintosh LC3 including keyboard and mouse
Apple LaserWriter IINT
Bernoulli removable dual disk drive
Software:
-----------
MacPascal
MacTerminal
MacWrite x 2
MacPaint x 2
Microsoft File
Introduction to Macintosh Cassette
Test Drive a Macintosh Cassette
Quartet 128K Mac Integrated Software Program
CricketGraph for Mac or SE or Mac II, required external drive or hard disk
CricketDraw for MacPlus, SE or Mac II
Cricket presents 2.0 for MacPlus, SE, Portable, Mac II, requires 1MB RAM, 2
drives & Sys6.0
Lotus 1-2-3 for MacPlus, SE, SE/30, Classic, LC, SI, Portable or Mac II,
requires hard drive and 2MB RAM for System 6.04, 3MB for System 7
Ashton Tate Full Impact Software for MacPlus, requires 2 drives, System 4.1
and 1MB RAM or 2MB with MultiFinder
FullWrite Professional for MacPlus, SE, II, requires 1x800K drive + hard
drive and 1MB RAM or 2MB with MultiFinder
dBase Mac for MacPlus, SE, II, requires 1x 800K drive + hard drive, System
4.1, Finder 5.5
Vicom Communications Software, Viewdata and ASCII
Wingz Spreadsheet for MacPlus, SE, II, requires System 4.1, Finder 5.5, 2
drives, 1MB memory or 2MB with MultiFinder.
Macintosh Learning Series - Learn to Use HyperCard - Beginning HyperCard
Omnis 3 Plus for 512K, MacPlus, MacXL
Omnis 5 for MacPlus to IIcx, requires hard disk and 1MB memory or 2MB with
MultiFinder.
MacForth
Trivia Arcade
Manuals:
-----------
Macintosh MacWrite x 4
MultiFinder User's Guide
AppleLink Users Guide 5.1
AppleLink Users Guide 6.0
AppleLink Users Guide 6.0 Guide to New Features
AppleLink
AppleLink 5.0
Hypercard User's Guide
Macintosh New Features Update (for MacPlus or Mac II)
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
Apple limited edition working model of delivery lorry, with logo on side,
>from Apple Cupertino, matching pair
Original Mac Carry Cases for compact Macs
Original Mac logo beach towels from Apple HQ Cupertino (unused!)
Ribbons for Apple Imagewriter
Apple Logo carrier bags
Test Drive a Macintosh luggage tags
Test Drive a Macintosh booking sheets
Sales literature
APPLE
=====
Hardware:
------------
Apple //c computer x 3
Apple //c disk drive x 2
Apple //c monitor x 3
Apple //c monitor stand x 2
Apple //c colour modulators x 3
Apple //c mouse
Apple //e computer
Cub colour monitor for Apple, Microvitec 1446, 14 inch screen
Apple //e 80 Column Cards x 3
Apple II DOS Card x 4
Apple II or //e DOS 3.3 System Master Pack with card and disk
Apple II Super Serial Card for II and //e
Apple Colour Card
Apple Tabs Card
Apple Microsoft RAM Card
Apple Language Card
Cirtech Z80 CP/M Card for Apple //e
Symbiotic card x 2
Epson Apple II Interface Card and Cable
Epson Apple II Intelligent Parallel Interface Card
Software:
------------
Appleworks for the Apple //e or //c
Zardax Wordprocessor
Bookeeper II
Superbase
Collossus 4 Chess for Apple II
Dunzhin
Blackjack
Manuals:
-----------
Apple Pascal
Apple Disk II Installation
DOS Users Manual
ProDos Users Manual
DOS Programmers Manual
80 Column Text Card Manual
Imagewriter User Manual
Beneath Apple DOS
Apple II Supplement to Owners Manual
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
Apple //c Carry Case
Apple limited edition working model of delivery lorry, with logo on side,
>from Apple Cupertino, matching pair
Apple II motherboard (untested)
Apple Logo carrier bags
Sales literature
SIRIUS
=====
Hardware:
------------
2 x Sirius Computer with twin floppy 5.25" drives, parallel port, serial
port
2 x Sirius Monitor
2 x Sirius multifunction keyboard including numeric keypad and function
keys
Sirius RAM cards ( x 3)
Sirius Z80 card
Software:
-----------
Wordstar (Pulsar)
Sirius Audio Toolkit
Manuals:
-----------
Hardware Manuals
Operating Systems Configuration Guide MS-DOS
The Wordstar Users Reference Manual
The Wordstar Training Guide x 2
Reference Cards
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
New 5.25" floppy disks in plastic cases
Sales literature
APRICOT
========
Hardware:
------------
Apricot Computer with twin 3.5" floppy drives, serial port, parallel port
Apricot multifunction keyboard including numeric keypad and function keys.
Apricot monitor
Apricot 256K memory board
Software:
-----------
Lotus 1-2-3
Lotus Symphony
Friday!
Micromodeller
Manuals:
-----------
Apricot Manuals
Apricot SuperCalc / SuperPlanner
Apricot Configurator Guide
Apricot Concurrent CP/M User Guide
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
New 5.25" floppy disks in plastic cases
Sales literature
EPSON HX20
==========
Hardware:
------------
Epson HX20 Portable Computer
Software:
------------
Intext Wordprocessing Text Editor with Comms
PX8 Business Simulations Portable Cardbox Plus (x3)
Manuals:
-----------
Epson HX20 Technical Manual
Using and programming the Epson HX20 Portable Computer
HX-20 Technical Support Manual
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
Epson Roll Paper for HX-20
Sales literature
BBC
===
Hardware:
------------
MicroDrive
Software:
-----------
Tapes:
Killer Gorilla (Program Power)
Artist 3 (Visual Learning Ltd)
Acornsoft: (all in pristine unopened shrink-wrapped sealed packets)
Hopper
Missile Base
Word Sequencing x 2
Business Games
Monsters
Free Fall
Rocket Raid
Graphs and Charts
Arcade Action
Disks:
Disk Pack 4 Demo:
Number Painter
Words Words Words
Number Puzzler
Squeeze
Podd.
Castle Quest Demo (Micro Power)
Magic Mushrooms Demonstration Disk (Acornsoft)
Acornsoft Ltd Demonstration Disk
Six Figure Serial Number Data for the BBC Microcomputer (2 disks)
Manuals:
-----------
Games BBC Computers Play
Creative Graphics on the BBC Microcomputer (Acornsoft)
Graphics and Charts on the BBC Microcomputer (Acornsoft)
BBC Micro Graphics and Sound
Discovering BBC Micro Machine Code - How to get more Speed and Power
Computer Graphics with 29 Ready-to-run Programs
Electronically Speaking: Computer Speech Generation
Other:
--------
Cassette cables x 2
Sales literature
ELECTRON
=========
Software:
------------
(Tapes all in pristine unopened shrink-wrapped sealed packets)
Meteors
Introductory Cassette
Personal Money Management
Draughts and Reversi x 2
Manuals:
-----------
Electron Service Manual
Acorn Electron User Guide
The Electron Book BASIC, Sound and Graphics
The Working Electron: A Library of Practical Programs
The Electron Programmer
Start Programming with the Electron x 3
Assembly Language Programming on the Electron
Other:
--------
Cassette cables x 2
Sales literature
IBM
====
Hardware:
------------
IBM PC with floppy drives
IBM PC monitor
IBM keyboard
IBM memory board with Asynch serial port (memory not fitted)
IBM Serial card
Software 5.25":
-------------------
IBM System disk and manuals
Lotus 1-2-3
1-2-3- Report Writer
Symphony
IBM Asynch Communications Support
2 x Ashton Tate MultiMate II for PC, XT, AT, requires double sided drives,
384K RAM, DOS v 2.0-3.2
WordPerfect PlanPerfect v 5 for PC, XT, AT, PS/2, requires DOS 2.0, 384K
RAM, 2 drives
WordPerfect Office v 2 for PC Networks, requires DOS 3.0, 512K Memory
WordPerfect Library v 2
WordPerfect MathPlan Spreadsheet v 3
WordPerfect DataPerfect v 2
WordPerfect DrawPerfect for PC, XT, AT, PS/2 requires 384K RAM, DOS 2.0, 2
HD disk drives, graphics adaptor and monitor
WordPerfect Shell 3.0 for PC, XT, AT, PS/2 requires 384K RAM, DOS 2.0, 2 HD
disk drives, graphics adaptor and monitor
dB Publisher v 1
dBXL requires DOS 2.0, 410K free RAM, i.e. 512K RAM, 2 drives
WordPerfect Executive 1987 requires DOS 2.0, PS/2, 512K memory, 2x 360K
drives or 1 x 720K drive
Migent Ability, requires 384K RAM and 2 floppy drives
Migent Account-Ability requires 256K RAM and 2 floppies
2 x SMART Software System Integrated Spreadsheet, Business Graphics,
Database Manager, Wordprocessing, Time Manager and Communications for
PC,XT,AT, requires DOS 2.0, 320K RAM, 2 ds drives
Samna One Word Wordprocessing for PC, XT, AT requires DOS 3.0, 380K RAM, 2
disk drives, (one 1.2MB)
Carbon Copy Remote Communications Software for PC, requires 256K RAM and
Hayes compatible modem
R:Base for PC, XT, AT, PS/2, requires DOS 2.0, 512K RAM, hard disk.
Dr. Solomon's Anti Virus Toolkit v 5.18
Borland Sidekick for PC, XT, AT, requires 128K RAM, DOS 1.0, one drive
Revelation for PC, requires 320K
Microsoft Rbase Tutorial for PC, XT, AT requires 320K memory, DOS 2.0, 2x
ds drives or 1x ds + hd
Paperback Writer requires 128K RAM, 1dd, DOS 2, 80 column monitor
Borland Turbo Prolog for PC, XT, AT requires DOS 2.0, 384K RAM
MenuMaker requires 1 x dd 360K, 128K RAM, DOS 2.1
Word for Word Professional 4.0 Document Conversion System
Pink Turbo CAD v 1.5, requires 2 x 256K disk drives, colour graphics
monitor
Delta 4
Dunzhin
Asylum
Blackjack
PC-File:db
Keystroke Knowledge Local Government v 4.01
Software 3.5":
-----------------
Ashton Tate MultiMate II requires DOS 3.30 or OS/2
Ashton Tate Framework III v 1.1
Wordstar 5.5 for PC, XT, AT
WordPerfect Presentations v 2 for DOS 3.0, requires 286+, 490K free memory,
6MB free hard disk space (14MB full), graphics adaptor
Stac Stacker v 2 data compression software for DOS 3,4,5, requires 512K RAM
WordPerfect PlanPerfect v 5 for PC, XT, AT, PS/2, requires DOS 2.0, 384K
RAM, 2 drives
WordPerfect Executive 1987 requires DOS 2.0, PS/2, 512K memory, 2x 360K
drives or 1 x 720K drive
Manuals:
-----------
IBM Basic Manual
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
IBM TABS dongle
New 5.25" floppy disks in plastic cases
Sales literature
PRINTERS
========
Hardware:
------------
Epson RX80 FT+
Epson cut sheet feeder
Epson Tractor feed
Epson LX80 printer
Epson RX F/T new Printhead
TEC F10-40 daisy wheel printer, wide carriage, serial interface
Manuals:
-----------
Epson FX80 Manual
Tec F10 Printer Manual x 2
Miscellaneous technical information
Other:
--------
Ribbons for Epson RX80 FT+
Ribbons for Epson LX80
Ribbons for Tec Printer
Daisywheels for Tec F10 Printer
Sales literature
OTHER
=======
Hardware:
------------
Sirius plain paper desktop photocopier (Canon)
Sanyo Slimline cassette player
Pace modem
Hayes modem
Apple 'modem eliminator'
Epson power supply
Dragon monitor cable
VIC 20 monitor cable
Software:
------------
Commodore 64 tape - Dr Who Demo CBM 64 (Program Power)
VIC-20 Presentation Programs tape -
Typing Trainer
Maths Maze
Mortsave
Blue Meanies
Spellbound
Biorhythms
A cassette with handwritten label 'Dragon Training Tape'
A cassette with handwritten label 'BBC Training Tape'
Software for Windows 3.0/3.1:
-------------------------------------
CA Cricket Image for 286/386, requires 2MB RAM
CA Cricket Paint requires 2 MB RAM, mouse, recommends 386 + 2MB RAM
Stac Stacker v 2 data compression software for Windows 3.0, requires 512K
RAM
HP Dashboard for 286, 386, 486 requires 1.5 MB free hard disk space, 1.44
disk drive, Windows 3.1
Lotus Organiser for Windows 3.0, requires 286, 1.5 MB hard disk, VGA
monitor, mouse
Lotus Approach database v2 for Windows 3.0, requires 286, 2MB RAM, mouse
WordPerfect 5.2 for Windows 3.0, requires 386, 4MB RAM, hard drive and
floppy
WordPerfect 6.0 for Windows 3.1, requires 386, VGA, 32MB hard disk space,
6MB RAM, mouse
WordPerfect Presentations v2 for Windows 3.1, requires 386+, DOS 3.1, 9-12
MB hard disk space, 4MB RAM, EGA/VGA graphics adapter, mouse.
Borland Quattro Pro v 6.0 spreadsheet and graphics for Windows 3.1,
requires 386, 4MB RAM, 10-28 MB hard disk space.
Borland Office for Windows requires 386, 4MB RAM, 16MB hard disk space,
EGA/VGA, mouse
Quattro Pro for Windows 3.0 v 5.0 Workgroup edition
WordPerfect v 6.0 for Windows 3.0 Workgroup enabled
Paradox v 4.5 for Windows 3.1, Workgroup edition
Software for Windows 95:
-------------------------------
Borland Intrabuilder, requires 486, CD, 12MB RAM, 30MB hard drive, VGA +
graphics adapter, TCP/IP internet comms
Other:
--------
Magazines (many - not yet listed)
----------------------------------------------------------------------------
----------------------------------------------------------------------------
----- Original Message -----
From: "Cini, Richard" <RCini(a)congressfinancial.com>
To: "'gen'" <gen(a)webline.plus.com>
Sent: Monday, April 16, 2001 2:44 PM
Subject: RE: Computer collection
> Gen:
>
> I belong to a group of collectors with people all over the world,
> and I know a few in the UK.
>
> If you could send be a brief inventory of what you have
> (manufacturer, model and quantity) I can pass that on to the other list
> members. No need to list software titles; just list computers and
> accessories/add-on items.
>
> Thanks.
> Rich
>
> -----Original Message-----
> From: gen [mailto:gen@webline.plus.com]
> Sent: Sunday, April 15, 2001 1:04 PM
> To: rcini(a)msn.com
> Subject: Computer collection
>
>
> Hi there
>
> I got your email address from the internet.
>
> I have a substantial UK collection of 'antique' computers, mostly 'first
> editions' of systems such as Apple, IBM, Sirius, Apricot, Macintosh,
Epson,
> etc. These are not old and used, they are in pristine condition in their
> original boxes with manuals, software & literature. Would you know of
> anyone
> interested in buying it? I am based in the UK.
>
> Regards
>
>
>
>
>
>
>
>
On May 2, 16:29, ip500 wrote:
> Interesting find at the VaTech auction last weekend. I never heard
of
> General Robotics Corp ... anyone else?? The size of a rack mount micro
> but it uses DEC PDP-11 cards [has a M-8186] plus a bunch of GR
> propriatary
> cards. Odd but neat. Any info always appreciated.
> Craig
GR made a few cards for QBus systems. I have a GR "RX02" which has a
50-pin Shugart interface and works with ordinary 8" drives. It's a
dual-height card. It's also capable of handling dual-sided "RX03" format,
and I think up to 4 drives. There's an on-board bootstrap option. Plessey
made (badged?) a very similar (if not identical) board. I think I have the
manual somewhere. These boards were quite popular. I've seen one built
into a single 8" drive case with an M8186 (11/23) and an M8047 (MXV11-A).
I also have a GR DHV11, 16-channel QBus multiplexer, with channel zero
mapped to the console address. It's a quad-high and needs a special
3U-high distribution box, which has (IIRC) three stacked PCBs containing a
Z80 and some "stuff". Unfortunately mine is faulty :-( I don't have any
docs, all I know is that it appears at addresses 160020-160036 (DHV11) and
170500-170502 (DM11 multiplexer) as well as 177560-177566 (console).
According to my register dump, that is.
--
Pete Peter Turnbull
Network Manager
University of York
From: John Lawson <jpl15(a)panix.com>
>>around half of the active participants have the Affliction. Hmmm... a
>>Classic Computer Collector's Net on 20 or 40 Meters? We'd need to get
>>Sellam licensed... ;}
What about us Techs... VHF and above!
> Anyway... if by Packrat you mean an AEA PK232... they are a very nice
>TNC/Modem/Decoder... function set depending on the ROM Rev. And,
>(ObClassiccmp) I managed to purchase PK232 serial number 76 from a big
ham
>store in Los Angeles the week they were introduced. After serial #100,
>production was transfered to Hong Kong, where it remained until AEA went
>under in 95 or 96 (IIRC). Also (ObClassiccmp) the PK232s were run by a
>classic Z80 chipset. And yes, I still own it, and two others of later
>vintage I picked up along the way.
I watched this via remote (IE: read QST have many Handbooks) now I can
being as I have 6/2/70cm capability.
Allison
KB1GMX... Old computers new gimmicks.
Hi there
I'm based in the UK with a collection of pristine classic computers to sell
and have been asked to post the full details to this list.
It's a substantial collection of 'antique' computers,
mostly 'first editions' of systems such as Apple, IBM, Sirius, Apricot,
Macintosh, Epson, etc. These are not old and used, they are mostly in
pristine condition in their original boxes with manuals, software and
literature. The only reason I'm selling is that I have to move house and
will not have enough room any more.
If you are interested please let me know. I am open to offers for the whole
collection but, realistically, I expect people will be more interested in
one or several individual items. In that case I'll probably hang on to some
things.
Please make me an offer on any items you are interested in . You would need
to collect or pay for carriage from NW London (UK).
Please also pass this on to anyone else who may be interested.
Thank you.
It's a long list, you have been warned!....
----------------------------------------------------------------------------
APPLE MACINTOSH
================
Hardware:
------------
Apple Macintosh 128K computer including keyboard and mouse
Apple Macintosh 512K computer including keyboard and mouse
Macintosh external disk drive
Apple Macintosh keyboard (128K style)
Apple Macintosh mouse (128K style)
Mac Daisywheel Connection
Apple Macintosh Plus including keyboard and mouse
Apple Imagewriter Printer
Apple Macintosh II including keyboard and mouse
Apple Macintosh II monitor
Apple Macintosh LC3 including keyboard and mouse
Apple LaserWriter IINT
Bernoulli removable dual disk drive
Software:
-----------
MacPascal
MacTerminal
MacWrite x 2
MacPaint x 2
Microsoft File
Introduction to Macintosh Cassette
Test Drive a Macintosh Cassette
Quartet 128K Mac Integrated Software Program
CricketGraph for Mac or SE or Mac II, required external drive or hard disk
CricketDraw for MacPlus, SE or Mac II
Cricket presents 2.0 for MacPlus, SE, Portable, Mac II, requires 1MB RAM, 2
drives & Sys6.0
Lotus 1-2-3 for MacPlus, SE, SE/30, Classic, LC, SI, Portable or Mac II,
requires hard drive and 2MB RAM for System 6.04, 3MB for System 7
Ashton Tate Full Impact Software for MacPlus, requires 2 drives, System 4.1
and 1MB RAM or 2MB with MultiFinder
FullWrite Professional for MacPlus, SE, II, requires 1x800K drive + hard
drive and 1MB RAM or 2MB with MultiFinder
dBase Mac for MacPlus, SE, II, requires 1x 800K drive + hard drive, System
4.1, Finder 5.5
Vicom Communications Software, Viewdata and ASCII
Wingz Spreadsheet for MacPlus, SE, II, requires System 4.1, Finder 5.5, 2
drives, 1MB memory or 2MB with MultiFinder.
Macintosh Learning Series - Learn to Use HyperCard - Beginning HyperCard
Omnis 3 Plus for 512K, MacPlus, MacXL
Omnis 5 for MacPlus to IIcx, requires hard disk and 1MB memory or 2MB with
MultiFinder.
MacForth
Trivia Arcade
Manuals:
-----------
Macintosh MacWrite x 4
MultiFinder User's Guide
AppleLink Users Guide 5.1
AppleLink Users Guide 6.0
AppleLink Users Guide 6.0 Guide to New Features
AppleLink
AppleLink 5.0
Hypercard User's Guide
Macintosh New Features Update (for MacPlus or Mac II)
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
Apple limited edition working model of delivery lorry, with logo on side,
>from Apple Cupertino, matching pair
Original Mac Carry Cases for compact Macs
Original Mac logo beach towels from Apple HQ Cupertino (unused!)
Ribbons for Apple Imagewriter
Apple Logo carrier bags
Test Drive a Macintosh luggage tags
Test Drive a Macintosh booking sheets
Sales literature
APPLE
=====
Hardware:
------------
Apple //c computer x 3
Apple //c disk drive x 2
Apple //c monitor x 3
Apple //c monitor stand x 2
Apple //c colour modulators x 3
Apple //c mouse
Apple //e computer
Cub colour monitor for Apple, Microvitec 1446, 14 inch screen
Apple //e 80 Column Cards x 3
Apple II DOS Card x 4
Apple II or //e DOS 3.3 System Master Pack with card and disk
Apple II Super Serial Card for II and //e
Apple Colour Card
Apple Tabs Card
Apple Microsoft RAM Card
Apple Language Card
Cirtech Z80 CP/M Card for Apple //e
Symbiotic card x 2
Epson Apple II Interface Card and Cable
Epson Apple II Intelligent Parallel Interface Card
Software:
------------
Appleworks for the Apple //e or //c
Zardax Wordprocessor
Bookeeper II
Superbase
Collossus 4 Chess for Apple II
Dunzhin
Blackjack
Manuals:
-----------
Apple Pascal
Apple Disk II Installation
DOS Users Manual
ProDos Users Manual
DOS Programmers Manual
80 Column Text Card Manual
Imagewriter User Manual
Beneath Apple DOS
Apple II Supplement to Owners Manual
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
Apple //c Carry Case
Apple limited edition working model of delivery lorry, with logo on side,
>from Apple Cupertino, matching pair
Apple II motherboard (untested)
Apple Logo carrier bags
Sales literature
SIRIUS
=====
Hardware:
------------
2 x Sirius Computer with twin floppy 5.25" drives, parallel port, serial
port
2 x Sirius Monitor
2 x Sirius multifunction keyboard including numeric keypad and function
keys
Sirius RAM cards ( x 3)
Sirius Z80 card
Software:
-----------
Wordstar (Pulsar)
Sirius Audio Toolkit
Manuals:
-----------
Hardware Manuals
Operating Systems Configuration Guide MS-DOS
The Wordstar Users Reference Manual
The Wordstar Training Guide x 2
Reference Cards
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
New 5.25" floppy disks in plastic cases
Sales literature
APRICOT
========
Hardware:
------------
Apricot Computer with twin 3.5" floppy drives, serial port, parallel port
Apricot multifunction keyboard including numeric keypad and function keys.
Apricot monitor
Apricot 256K memory board
Software:
-----------
Lotus 1-2-3
Lotus Symphony
Friday!
Micromodeller
Manuals:
-----------
Apricot Manuals
Apricot SuperCalc / SuperPlanner
Apricot Configurator Guide
Apricot Concurrent CP/M User Guide
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
New 5.25" floppy disks in plastic cases
Sales literature
EPSON HX20
==========
Hardware:
------------
Epson HX20 Portable Computer
Software:
------------
Intext Wordprocessing Text Editor with Comms
PX8 Business Simulations Portable Cardbox Plus (x3)
Manuals:
-----------
Epson HX20 Technical Manual
Using and programming the Epson HX20 Portable Computer
HX-20 Technical Support Manual
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
Epson Roll Paper for HX-20
Sales literature
BBC
===
Hardware:
------------
MicroDrive
Software:
-----------
Tapes:
Killer Gorilla (Program Power)
Artist 3 (Visual Learning Ltd)
Acornsoft: (all in pristine unopened shrink-wrapped sealed packets)
Hopper
Missile Base
Word Sequencing x 2
Business Games
Monsters
Free Fall
Rocket Raid
Graphs and Charts
Arcade Action
Disks:
Disk Pack 4 Demo:
Number Painter
Words Words Words
Number Puzzler
Squeeze
Podd.
Castle Quest Demo (Micro Power)
Magic Mushrooms Demonstration Disk (Acornsoft)
Acornsoft Ltd Demonstration Disk
Six Figure Serial Number Data for the BBC Microcomputer (2 disks)
Manuals:
-----------
Games BBC Computers Play
Creative Graphics on the BBC Microcomputer (Acornsoft)
Graphics and Charts on the BBC Microcomputer (Acornsoft)
BBC Micro Graphics and Sound
Discovering BBC Micro Machine Code - How to get more Speed and Power
Computer Graphics with 29 Ready-to-run Programs
Electronically Speaking: Computer Speech Generation
Other:
--------
Cassette cables x 2
Sales literature
ELECTRON
=========
Software:
------------
(Tapes all in pristine unopened shrink-wrapped sealed packets)
Meteors
Introductory Cassette
Personal Money Management
Draughts and Reversi x 2
Manuals:
-----------
Electron Service Manual
Acorn Electron User Guide
The Electron Book BASIC, Sound and Graphics
The Working Electron: A Library of Practical Programs
The Electron Programmer
Start Programming with the Electron x 3
Assembly Language Programming on the Electron
Other:
--------
Cassette cables x 2
Sales literature
IBM
====
Hardware:
------------
IBM PC with floppy drives
IBM PC monitor
IBM keyboard
IBM memory board with Asynch serial port (memory not fitted)
IBM Serial card
Software 5.25":
-------------------
IBM System disk and manuals
Lotus 1-2-3
1-2-3- Report Writer
Symphony
IBM Asynch Communications Support
2 x Ashton Tate MultiMate II for PC, XT, AT, requires double sided drives,
384K RAM, DOS v 2.0-3.2
WordPerfect PlanPerfect v 5 for PC, XT, AT, PS/2, requires DOS 2.0, 384K
RAM, 2 drives
WordPerfect Office v 2 for PC Networks, requires DOS 3.0, 512K Memory
WordPerfect Library v 2
WordPerfect MathPlan Spreadsheet v 3
WordPerfect DataPerfect v 2
WordPerfect DrawPerfect for PC, XT, AT, PS/2 requires 384K RAM, DOS 2.0, 2
HD disk drives, graphics adaptor and monitor
WordPerfect Shell 3.0 for PC, XT, AT, PS/2 requires 384K RAM, DOS 2.0, 2 HD
disk drives, graphics adaptor and monitor
dB Publisher v 1
dBXL requires DOS 2.0, 410K free RAM, i.e. 512K RAM, 2 drives
WordPerfect Executive 1987 requires DOS 2.0, PS/2, 512K memory, 2x 360K
drives or 1 x 720K drive
Migent Ability, requires 384K RAM and 2 floppy drives
Migent Account-Ability requires 256K RAM and 2 floppies
2 x SMART Software System Integrated Spreadsheet, Business Graphics,
Database Manager, Wordprocessing, Time Manager and Communications for
PC,XT,AT, requires DOS 2.0, 320K RAM, 2 ds drives
Samna One Word Wordprocessing for PC, XT, AT requires DOS 3.0, 380K RAM, 2
disk drives, (one 1.2MB)
Carbon Copy Remote Communications Software for PC, requires 256K RAM and
Hayes compatible modem
R:Base for PC, XT, AT, PS/2, requires DOS 2.0, 512K RAM, hard disk.
Dr. Solomon's Anti Virus Toolkit v 5.18
Borland Sidekick for PC, XT, AT, requires 128K RAM, DOS 1.0, one drive
Revelation for PC, requires 320K
Microsoft Rbase Tutorial for PC, XT, AT requires 320K memory, DOS 2.0, 2x
ds drives or 1x ds + hd
Paperback Writer requires 128K RAM, 1dd, DOS 2, 80 column monitor
Borland Turbo Prolog for PC, XT, AT requires DOS 2.0, 384K RAM
MenuMaker requires 1 x dd 360K, 128K RAM, DOS 2.1
Word for Word Professional 4.0 Document Conversion System
Pink Turbo CAD v 1.5, requires 2 x 256K disk drives, colour graphics
monitor
Delta 4
Dunzhin
Asylum
Blackjack
PC-File:db
Keystroke Knowledge Local Government v 4.01
Software 3.5":
-----------------
Ashton Tate MultiMate II requires DOS 3.30 or OS/2
Ashton Tate Framework III v 1.1
Wordstar 5.5 for PC, XT, AT
WordPerfect Presentations v 2 for DOS 3.0, requires 286+, 490K free memory,
6MB free hard disk space (14MB full), graphics adaptor
Stac Stacker v 2 data compression software for DOS 3,4,5, requires 512K RAM
WordPerfect PlanPerfect v 5 for PC, XT, AT, PS/2, requires DOS 2.0, 384K
RAM, 2 drives
WordPerfect Executive 1987 requires DOS 2.0, PS/2, 512K memory, 2x 360K
drives or 1 x 720K drive
Manuals:
-----------
IBM Basic Manual
[Many more - not yet listed]
Miscellaneous technical information
Other:
--------
IBM TABS dongle
New 5.25" floppy disks in plastic cases
Sales literature
PRINTERS
========
Hardware:
------------
Epson RX80 FT+
Epson cut sheet feeder
Epson Tractor feed
Epson LX80 printer
Epson RX F/T new Printhead
TEC F10-40 daisy wheel printer, wide carriage, serial interface
Manuals:
-----------
Epson FX80 Manual
Tec F10 Printer Manual x 2
Miscellaneous technical information
Other:
--------
Ribbons for Epson RX80 FT+
Ribbons for Epson LX80
Ribbons for Tec Printer
Daisywheels for Tec F10 Printer
Sales literature
OTHER
=======
Hardware:
------------
Sirius plain paper desktop photocopier (Canon)
Sanyo Slimline cassette player
Pace modem
Hayes modem
Apple 'modem eliminator'
Epson power supply
Dragon monitor cable
VIC 20 monitor cable
Software:
------------
Commodore 64 tape - Dr Who Demo CBM 64 (Program Power)
VIC-20 Presentation Programs tape -
Typing Trainer
Maths Maze
Mortsave
Blue Meanies
Spellbound
Biorhythms
A cassette with handwritten label 'Dragon Training Tape'
A cassette with handwritten label 'BBC Training Tape'
Software for Windows 3.0/3.1:
-------------------------------------
CA Cricket Image for 286/386, requires 2MB RAM
CA Cricket Paint requires 2 MB RAM, mouse, recommends 386 + 2MB RAM
Stac Stacker v 2 data compression software for Windows 3.0, requires 512K
RAM
HP Dashboard for 286, 386, 486 requires 1.5 MB free hard disk space, 1.44
disk drive, Windows 3.1
Lotus Organiser for Windows 3.0, requires 286, 1.5 MB hard disk, VGA
monitor, mouse
Lotus Approach database v2 for Windows 3.0, requires 286, 2MB RAM, mouse
WordPerfect 5.2 for Windows 3.0, requires 386, 4MB RAM, hard drive and
floppy
WordPerfect 6.0 for Windows 3.1, requires 386, VGA, 32MB hard disk space,
6MB RAM, mouse
WordPerfect Presentations v2 for Windows 3.1, requires 386+, DOS 3.1, 9-12
MB hard disk space, 4MB RAM, EGA/VGA graphics adapter, mouse.
Borland Quattro Pro v 6.0 spreadsheet and graphics for Windows 3.1,
requires 386, 4MB RAM, 10-28 MB hard disk space.
Borland Office for Windows requires 386, 4MB RAM, 16MB hard disk space,
EGA/VGA, mouse
Quattro Pro for Windows 3.0 v 5.0 Workgroup edition
WordPerfect v 6.0 for Windows 3.0 Workgroup enabled
Paradox v 4.5 for Windows 3.1, Workgroup edition
Software for Windows 95:
-------------------------------
Borland Intrabuilder, requires 486, CD, 12MB RAM, 30MB hard drive, VGA +
graphics adapter, TCP/IP internet comms
Other:
--------
Magazines (many - not yet listed)
----------------------------------------------------------------------------
Interesting find at the VaTech auction last weekend. I never heard of
General Robotics Corp ... anyone else?? The size of a rack mount micro
but it uses DEC PDP-11 cards [has a M-8186] plus a bunch of GR
propriatary
cards. Odd but neat. Any info always appreciated.
Craig
Why oh why is it that software that uses dongles for copy protection never,
ever, includes the dongle in thrift or used software stores? Is there a
classiccmp approved solution to keeping older software running, even if the
dongle is long gone? For example, through buying old systems I've now
acquired three original versions of an Amiga DB package called Superbase
(two Superbase Personals, one Superbase Professional). I have original
disks, manuals, etc., but no dongles. Short of finding "broken" copies of
the software, is there any way to defeat the hardware check that's looking
for the dongle? What are the ethics of finding a way to defeat copy
protection on old software? Any suggestions much appreciated.
Cheers,
Mark Gregory
You did not fully follow your professor when s/he lectured on communications theory.
Sampling an analogue signal at twice the highest frequency of interest, will result in zero output at exactly that frequency, as you identified. This effect is known as sampling uncertainty. However, if you sample an analogue signal of 0.9999999....*f(max) at 2*f(max), you will indeed get the desired result, no uncertainty there. The farther your signal to be sampled is away from f(max), the quicker the desired output signal will be available.
If we just could figure out what will happen when the input frequency is h i g h e r than f(max).......
Trust Shannon
Hi ,
I am favcing problem while booting the Sun Sol. 5.6 . After
Starting rpc services: rpcbind keyserv ypbind done
It gets stuck...not going ahead...
Can anyone tell me a way out to this?
thanks in advance
vijay