I just obtained a like new CDR-84-1 SCSI cdrom, no docs as usual. I need
info on the jumper block (some may be DIP switches instead) numbered 1-6
on back as well as what speed (I'm guessing 3x) the cdrom is rated for.
If someone out there might knwo where I can get a copy of it's docs or
can scan and attach the pages to me it would be greatly appreciated.
The cdrom is going into my Dell 4066/XE server (#2 of 3) to be used on a
BBS I'm setting back up.
Tony Duell wrote:
> I'm quite sure that things like SPARCbooks are normally considered to be
> both laptops and workstations....
Oh yes. Obvious really. My SPARCbook has no internal floppy drive and
communicates with an external one via the SCSI bus. Since it is my
employer's property, not mine, I haven't dismantled it to see what's
inside, but I imagine a standard floppy drive and an interface board...
Some years ago we had a piece of data acquisition equipment called
MDAS-7000. Originally made by Transera corp., by the time we bought one by
Kaye Instruments. This had a 68000 CPU, a UNIX-alike in ROM (called Rnix),
and built in Tektronix BASIC.
The floppy drive on this was not connected to the CPU board. There was a
separate board controlling it, based around an 80188 CPU, that communicated
with the CPU board via, you guessed it, the SCSI bus.
I wonder if the box still exists, and if so, if I can get my hands on it.
Another potential Single Instance machine, I reckon...
Philip.
Hi Megan,
At 11:56 PM 12/30/98 -0500, you wrote:
>
>I recently unearthed an acquisition from several years ago (and
>added it to my home_systems web page).
>
>I have a TC200, a handheld, battery-powered portable terminal
>which appears to have been built by IXO, Inc, yet it has a
>Digital logo on it (so it either was, or was going to be,
>marketed by Digital).
>
>It is powered by a 6v Litium battery, like the kind you find
>in a Polaroid film pack (but they are not identical -- the
>battery terminals are in different places). It is called
>a PolaPulse battery.
>
>Does anyone know of a source for this battery nowadays?
>
Would it be this one?
http://www.polaroid.com/products/oem/battery/p100.html
-Dave
In a message dated 30/12/98 21:49:06 GMT Standard Time,
ard(a)p850ug1.demon.co.uk writes:
> What you're not going to get is the odd one or two CD-ROMs that are
> infected, unlike floppies where it could easily happen.
Agreed, apart from home produced or piarate ones which you have already
pointed out are always suspect. IIRC there have been rare ocasions where
floppies have been distributed with viruses in bulk, one was a batch of
preformatted ones where the master (or duplicating machine or whatever) was
infected with aa boot sector vvirus, and I belive that there has been at least
on occasion where a major software house accidentally distributed some but
that was many years ago.
Regards
Pete
In a message dated 29/12/98 11:03:53 GMT Standard Time, tim(a)thereviewguide.com
writes:
>
> Yes, I booted from a write protected floppy, but before that I did a
> virus scan with a normal boot.
A basic precaution of which some are not aware.
> And of course I don't use MS Anit Virus. IIRC, it hasn't been
> updated since 1992 when Windows 3.1 shipped!
>
Once again, you would be surprised how many people trust it.
Regards
Pete
<If I understood, this could be summed up as:
<When an interrupt happens, the interrupt line is pulled low by the
<interrupting device. If it's edge triggered, the CPU can't tell how many
<devices are causing the interrupt and only services the first one.
Assuming the interrupt was active low. the PC made it worse by being edge
and active high...poor.
<And are you saying that if they were level-triggered, I could have two
<devices on IRQ 7?
Yes!
<And is it easy to design a level-triggered equivalent
<to the PC on paper?
Yes. The 8259 PIC (interrupt controller) is fully programmable for edge
and level. It's possibel to go from edge to level on a common PC but you
have to write your own drivers and other drivers would blow up.
<Are all PS/2 s level-triggered or only the MCA ones?
Only MCA.
Allison
Recently a list of Russian Radios was posted to this group.
I have been in communication with the sellers, with an interest to having
them find me Russian calculators and computers (see my page at
http://www.comcen.com.au/~adavie/slide/calculator/soviet.html). They
indicated that they were able to get just about any model that I wanted, so
I asked for the "top 4" - three of which had never been seen other than as
grainy photographs. Within a day or so, they responded that they have the
calculators I asked for. I have asked for more details - pictures -
photocopy - serial numbers - anything!! No response, yet. It will be great
if they really DO have what they say they have, but at this stage my scam
detectors are hooting really loudly. I'd advise anyone dealing with these
people to exercise caution. They may be genuine, but usually if something
looks too good to be true...
I'll keep the group informed, if there's any further developments.
A
-----Original Message-----
From: Jason Willgruber <roblwill(a)usaor.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Thursday, December 24, 1998 10:15 AM
Subject: Re: Old Radios
I collect old radios, and I can definitely say differently. Just try
plugging in a metal-cabinet radio with a few bad tubes, turning it on,
and
touching the case. Also, get out of the way when a shelf collapses with
a
52-pound short-wave receiver on it. Other than that, you're probably
right.
--
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
-----Original Message-----
From: Marty <Marty(a)itgonline.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 23, 1998 2:40 PM
Subject: Re: Old Radios
> Come now comrade Griffiths, an old radio never hurt anyone.
>
> Marty
>
>
>
<The bit is how would _you_ have done it in 1975 with the parts
<available then without knowing what would show up soon after.
Try more like 1977 for the apple controller. In 75 it was two or three
boards of TTL.
Allison
I have a Model 3 whose display has grown very dim. I also have the lead
on 4 Model 4's that I can get for a steal. I am hoping that the display
>from a Model 4 could be moved to my 3. Is this possible? Are they they
same? Thanks,
--
--------------------------------------------------------
Todd Osborne
Senior Software Engineer
FMStrategies, Inc.
http://www.fmstrategies.com/
--------------------------------------------------------
FMStrategies, Inc: tosborne(a)fmstrategies.com
Internet E-Mail: todd.osborne(a)barnstormer-software.com
--------------------------------------------------------
Founder of the Virtual Windows Class Library (C++)
http://www.barnstormer-software.com/vwcl/
--------------------------------------------------------
Anagrams? (http://www.wordsmith.org/anagram/)
Can you figure out this one? Want the answer? E-Mail me.
COCO VERDI MOM (Hint: Think Late 1970's Computer)
--------------------------------------------------------
Quote:
2 Wrongs Don't Make a Right, But 3 Rights Make a Left!
--------------------------------------------------------
