On Nov 7, 7:54, Arno Kletzander wrote:
> According to the Ethernet Hardware Manual (we finally got a copy from
> somebody who also still uses such stuff...YEAH!), the LINK LED will only
illuminate
> if there is an active connection via the 10baseT network interface, NOT
when
> using the AUI port. BTW, this is the same way my PC's network interface
uses
> it.
>
> Yesterday, I went and borrowed a cross-over TP cable from the teacher who
> does all the network stuff at our school. Connected it between my PC and
the
> printer, let 'em power up...and pinging and telnetting both worked!
Ah. It's quite likely there are some links on the card which have to be
set one way to use the 10baseT port, and the other way to use the
transceiver... Look for a set of 6 links.
--
Pete Peter Turnbull
Network Manager
University of York
You have a cartridge in the drive? The LED on the front shows access? The
bus is correctly terminated? These things cause problems. A third issue is
sometimes the holder for the CD "pinches" it and it can't spin, make sure
its free to turn. Show DEV shows the drive as an RRD42? Its not conflicting
in address with another device?
--Chuck
At 12:26 AM 11/6/01 -0500, One Without Reason wrote:
>Hi. I am trying to get four VAXserver 3100's working. However, when I
>try to boot from my RRD42 (it is in 512 mode), it gives me an error
>DEVOFFLINE. I have tried more than one RRD42 with more than one
>machine. I need help ASAP. Thanks.
>
>Peace... Sridhar
RE: apple II
I've worked around and with them. Never serious 6502 programming but
used
apps on them like UCSD pascal. The disks worked ok compared to my NS*
{NS* disk controllers are reliable} and yes they were sensitive only to
the
extent that an unshielded 34pins cable didn't like to be near some
monitors.
The tubes in metal cases were ok but some of the plastic cased ones
tended
to radiate noise that the cables seemed to find.
It's beauty was the basic logic was simple as were the drive hardware and
that
helped it work better than most. Some of the better floppy systems of
the time where
neither simple nor cheap.
RE: trs80
>TRS-80 drives? I have a beautiful Model 1 setup. But talk about
trashing disks! And slow!
Slow was running the z80 at 1.7mhznot the disks fault though the step
rates were
really slow even for sa400s!..
See above and yep the tube was plastic cased and worse hot chassis!
Grounding
was poor on the drives, their internal regulators were at limits current
wise plus the
data separator in the EI was very poor. Not to worry though, as most
tended to
crash from the sloppy and noisy console to EI interface.
>What about the single board CP/M machines? I have them too. The disk
drives on the >Osborne were, based on extensive experience, the least
reliable ever made. If one
>drive could read what another had written, it was a gift from God. And
with the double density upgrade, it was much worse.
That was the drives and I always thought the SA400 series to be really
poor even
though my NS* had three of them. TM100s were not much better! Also
there was
some really bad media based on some of the media failures I've had over
the years.
The SA400 was the slowest, most unreliable floppy of the time, it made
everything
it was attached to look bad. The worst part is many vendors of early
5.25 drives
had their own version of worst at one point or another.
>And even later, how about the "ingenious" DEC double disk-munching
drives, that couldn't >format disks?
The drives could but the controller didn't, therein lies the difference.
The RX02 was
old when the 1771 FDC was young so comments based on post 1980 tech are
not reflective of then(pre 1980s). I'd call the RX01/2 the 1970s
version of an
IDE floppy as it was smart and executed commands that were higher level
than
even the 1771, mostly due to the microcoded controller. The RX01/2 were
reliable enough though the RX50 was pretty poor. In my book after the
RX02 the next useable floppy from DEC was the RX33 (teac FD-55GFR).
The commie controllers were a good idea that suffered from poor
implementation.
they were fast in themselves but the serial link was limited.
Allison
I met up with Bill Bradford today in Austin. One of our activities was to
visit the Goodwill computer store there (you know, the one with the museum
in the back). Well, it turns out that the general public is no longer
allowed to see the museum pieces (either that or the museum pieces are no
longer there), and it's all due to some freaks who broke in and stole --
guess what -- A FREAKING *NINTENDO* *SUPER* *FAMICOM*!
--
Jeffrey S. Sharp
jss(a)subatomix.com
Standard CP/M on 8" is the right bios but.... The right media
as the MDS controller was SD/D2... single density(normal ibm
128 byte sectors) and D2 was double density by m2fm and
incompatable with everything except Intel. So you need
another working intel box user.
Allison
-----Original Message-----
From: Doug Taylor <techno(a)dsuper.net>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Tuesday, November 06, 2001 11:42 AM
Subject: ISIS & CP/M for MDS 225 series3
>Hello folks...
>I've been trying to get an operating system for my MDS 225 series 3 on 8"
>disks.
>I've read that it uses ISIS (Intel System Implementation Supervisor)
>and that it can also run CP/M (GENERIC) according to Joe's web site
>http://www.intellistar.net/~rigdonj/mds.htm
>However, I've tried to email joe at
>rigdonj(a)intellistar.net
>But the mail bounces as undelivered.
>Any ideas?
>
>
>Doug Taylor (Techno)
>Sysop of the "Dead On Arrival BBS"
>Telnet://doabbs.dynip.com
>http://www-mtl.look.ca/~techno
>techno(a)dsuper.net
>
>
Last week I wrote that I had a coule PDP-11 /83 's
some people respoded with interests of various sorts
Here's what I can see that is inside the boxes:
system ID FRONT SIDE BACK SIDE
10597 RA-82 in drawer H3100 unit with
~ 4 ft tall in the six bays-three are empty 4 ethernet-like
connectors&
TK 70 tape drive 8 DB-25
connectors + others
module with 4 HDD-type buttons H7660C (PSU?)
module with 2 HDD-type buttons: 874-D
10595 RA-82 in drawer H3100 unit with
~4 ft tall in the six bays-three are empty 4
ethernet-like connectors&
TK 70 tape drive 8 DB-25
connectors + others
module with 4 HDD-type buttons H7660C (PSU?)
module with 2 HDD-type buttons: 874-D
10596 RA-82 in drawer H3100 unit with
~4 ft tall in the six bays-three are empty 4
ethernet-like connectors&
TK 70 tape drive 8 DB-25
connectors + others
module with 4 HDD-type buttons H7660C (PSU?)
module with 2 HDD-type buttons: 874-D
80-22593-01 module
xxxxx RA-81 RA-60 AA
~ 4 ft tall RA-82 RA-60 CA
RA-60 H7660A (PSU?)
H7660C (PSU?)
874-D
SA482 #1 3each HDD-like modules 3each H7660C (PSU?)
modules
over with lighted push buttons; 881A module
5 ft. tall 0ne empty bay
Unidentifiable module
SA482 #2 3each HDD-like modules 3each H7660C (PSU?)
modules
over with lighted push buttons; 881A module
5 ft. tall 0ne empty bay
Unidentifiable module
Any information as to what these are, etc. would be appreciated.
We'll be moving them today with a bunch of other stuff [deadlines,
deadlines, you know], and probably not find them again until week end. I'm
hoping we can move them out next week.
Thanks for your interest.
tom
tomsir(a)rochester.rr.com
Seems a few out of town collectors will be in Toronto this weekend.
Any interest in a mini-swap meet?
Any good sources for old machines?
Collector of Vintage Computers (www.ncf.ca/~ba600)
Megan;
Please - oh please - round up all your female friends and get
them on this list.
One of the best firmware programmers I ever knew was a lady
named Pat Daniels that worked with me in the late 70's and
early 80's. We developed Z80 firmware for custom multiubus
boards and were often forced to debug the hardware for the
designers using Biomation and HP logic analyzers. I know
she would claim that was the most fun she ever had hacking code.
Craig Landrum
> Date: Sun, 4 Nov 2001 23:37:11 -0500 (EST)
> From: Megan <mbg(a)world.std.com>
> Subject: Re: value of classic DEC machines?
>
> >>Speaking of you guys, just curious: is this an all-male hobby? No
> >>members of the fairer sex here?
>
> >There's Allison for one. I don't think we raise our little girls to
>
> I know I haven't posted for awhile... but I didn't think I'd be
> forgotten that quickly... :-)
>
> 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 |
> +--------------------------------+-------------------------------------+
>
Dick;
Without getting too far into religious issues, its been my experience
that Macs have consistently supplied a good computing environment for
me since 1984. My company uses both Macs and the latest Dell and
Compaq PCs, and I lost count of the times our Wintel people have
replaced hard disks and reloaded Windows. I have yet to see any
of our Macs fail, and we have owned one of virtually every model.
I own a G4 with a Cinema display that I wouldn't trade for any
Wintel box made.
What has impressed me is the level of integration between hardware
and software - natural since they own them both and can ensure a
high level of compatibility. This lends itself quite well to
adding new peripherals and other devices and have them working
quickly and without a hitch.
I recognize that Apple lost the OS wars. The reasons are numerous,
but one of the main ones stems from the corporate mentality of the
early 80's when you could never get fired for buying IBM. Hence,
truckloads of IBM PC's with Lotus 123 appeared on managers desks.
Marketing and sales liked Apple because their desktop publishing
capabilities were far and away better than Windows toward the
late 80's, but these people were in the minority, and as Windows
came along, there became less and less reason to go Apple, from
management's point of view. And once Apple was forced from
corporate desktops, they were relegated to a niche market, where
they will remain.
I am productive on my Mac. You are productive on your PC.
I'm sure both are terrific matches for their respective
users. And as all of us on this list can attest, there
have been numerous computers and OS's that, while they
may be terrific machines, fell by the wayside for one
reason or the other.
And you never know. Linux may just be eating Microsoft's
lunch by 2005 and those Wintel boxes may start to look
nostalgic :-)
Craig Landrum
Chief Technical Officer
Mindwrap, Inc
> Date: Sun, 4 Nov 2001 20:07:04 -0700
> From: "Richard Erlacher" <edick(a)idcomm.com>
> Subject: Re: hard-sector 5 1/4 disk
>
> Well, I'd have to say that, since the performance and reliability haven't
> improved since back in the '80's, the Apple was not designed for serious use,
> but rather for use by those who didn't value and trust computers enough to make
> the investment in one that warranted the value and trust. Oddly enough, it was
> less costly to use a much more reliable system with a larger installed software
> based, targeted at small business, yet, thanks to the Apple myths, people paid
> 15%-25% more with the idea that it would be easier to use, which, sadly, it
> wasn't.
>
> More below.
>
> Dick
>