Checked on eBay, none available. Anyone have such a thing? Original
preferred but will accept
a permanent offsite backup as well. Let me know how much you want for
it.
TIA,
Eric
Owen,
still interested in getting your PDP-11/34 to work? - I am just about to
reassemble mine after relocation.
RUN light off and display 000002 means the processor halted at memory
location 2, so it has probably executed a HALT instruction (opcode
000000) from location 0.
Try this: enter 773000, load this address, and then press START. Since
773000 is the standard start address for a bootstrap ROM, this should
get you a response on the console terminal attached to the DL-11W.
(Don't remember which, but I think it should ask for a two-letter device
code to boot.)
BTW: The DL11-W has a 20mA interface as well as RS-232. (Note the "1488"
and "1489" chips being present as well as a number of transistors and
other discrete components.) Which on is used depends on the cable: the
plug will have some wire connections to code it for either 20mA current
loop or RS-232 / V.24. If you have an original cable with the usual
DB-25 connector, it should be OK: current loop used a completely
different 6-pin connector.
For the settings at the terminal, I don't know this particular type, but
with most DEC lines you should be best prepared if you use XON/XOFF
handshake ("Main Rcv Hndsk" / "Main Xmt Hdsk"). Since at PDP-11 times,
the 8th bit was commonly used as a parity bit, set your terminal to
ignore this. Otherwise, you may get garbage characters instead of about
every second readable character.
A RS-232 break signal (certain voltage level applied for a certain time,
not a sequence of bits!) can sometimes cause a PDP-11 to HALT (depending
on settings on the interface board), so you may want to avoid this...
(perhaps by choosing an appropriate setting for the "Disconnect" option
for now?)
So much from memory. If you need more details, let me know, and I'll dig
into the docs.
Good luck,
Andreas
--
Andreas Freiherr
Vishay Semiconductor GmbH, Heilbronn, Germany
http://www.vishay.com
Just got myself an old BBC for 6502 assembler. My problem is that
some of the key contacts need cleaning. My question is -
Am I correct in thinking that all the keys need to unsoldered from the PCB,
and are the key contacts easy to get at and clean ?
Chris
Hi,
On 24-Jan-2002 Bryan Pope wrote:
> Are there any companies out there still making dot-matrix tractor-feed
> printers?
Look at http://www.psi-si.de
I've seen some of their printers in action, quite impressive ;-)
bye
--
Sanity is the trademark of a weak mind.
-- Mark Harrold
I guess I only thought I'd get out of this hobby. Last week I got this
<http://www.classiccmp.org/hp/mds-80/picture.jpg> in the mail. This is from
a deal that I've had working for over a year. I've got it running and it
works nice!
So has any body got any MDS manuals, SW or parts that they'd like to part
with?
Joe
Looks like an Analog Devices measurement card of some sort.
Try asking Analog Devices: URL www.analog.com or mailto:
wwwcustomer.service(a)analog.com.
Chris
Although I have (I believe) all of the manuals for the Zenith Z-100 (not
Z-100 pc), I cannot find any reference to the serial ports on this box.
What are the addresses of the DTE and DCE ports? I'd like to write some
assembly code to access these devices (under CP/M-86) but want to control
them at the hardware level instead of making BDOS calls.
Any help out there?
TIA,
Glen
0/0
> > This comes from a person that bought a G4 cube the day they announced
> > it would be discontinued. I wanted to insure that we got one for my
> > little collection.
>
> You could have waited several years and got it for the fraction of the
> cost, either online or at a thrift store ;)
>From what I have heard about the plastics on the cube... they might not
last long enough to make it to the thrift stores. I was under the
impression, they were fairly fragile.
-chris
<http://www.mythtech.net>
Jeff Hellige <jhellige(a)earthlink.net> wrote:
> [...] As for the new iMac, I think that, like
> the original iMac, it's meant to demystify computers for those that
> have no interest in them for the most part and who don't want a plain
> beige box taking up space. Like it or not, it's hard to ignore and
> it does make a statement.
Demystify? I don't know, I expect my mother is as mystified about her
spiffy new 2001 iMac as she is about her 1988 Mac Plus. She just
expects me to understand, and hopes she can figure it out before
she has to resort to calling me.
On the other hand, it does simplify computers!
2001's iMac came with a sheet of setup instructions. Six numbered
pictures, no words, and step 6 is pressing the power switch. It's
real simple, just connect keyboard to computer, mouse to keyboard,
phone or ethernet to computer, computer to power, and then press the
power switch. No need to fuss with monitor or speakers, they're
built-in.
What was real fun about this upgrade was getting the files from the
Mac Plus to the iMac. The Mac Plus can write 800KB stiffies, SCSI,
and serial; and the iMac can read CD-ROM, USB, Ethernet, modem, and
Firewire. Note what they have in common: nothing.
I did a dry run using an iBook and my old Mac Plus. First I got a
Belkin USB-to-SCSI doohickey and installed that on the iBook. Then I
connected the Mac Plus' hard disk to the SCSI doohickey and booted
MacOS 9.2. It asked me whether I wanted to initialize the
unrecognized volume, and I told it no. So much for that idea, and a
good thing it wasn't listening for spoken commands as I'd probably
have turned its ears blue.
The next try was with Basilisk II running on a Windows Me Harder
notebook, emulating a Quadra 650 and running System 7.5.3. This
worked better: I was able to connect the Plus' hard disk via an
Adaptec SlimSCSI PCMCIA interface and mount it and copy the files
over. Then I was able to use Appletalk to share the volume over the
notebook's Ethernet interface and mount it from the iBook.
So the WinMe notebook went back east with me. There I found that
Mom's Mac Plus' hard disk is a Jasmine, and there's something about it
that doesn't work with Basilisk II running System 7.5.3. If it's on
the SCSI bus, the simulated Mac hangs when it tries to mount the disk.
After three days of fussing with this I punted, used Stuffit on Mom's
Mac Plus to make archives of all her stuff (all 8MB of it!) and Mac
Kermit to transfer the archives over serial cabling to the simulated
Mac. That took a couple of multiple-hour sessions so let's say a day.
Then I unpacked the archives on the simulated Mac and did the
Appletalk share so the iMac could copy the files over.
And y'know what? AppleWorks 6.1.2 knows how to read ClarisWorks 1.0
files. One of my co-workers was the QA lead for ClarisWorks 1.0, and
he is very happy to know not only that a little old lady in Maryland
was using it for most of the last decade, but that her bits are safe.
I'm very happy too.
-Frank McConnell
BTW: Was thinking about getting a camera and taking some pictures of the
1000s. If I take pictures, does anyone have the bandwidth and willingness to
host them?
SteveRob
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