Got an 11/23 in a third-party enclosure ("Transduction 11/BLUE15") along
with a DSD dual floppy drive. Haven't powered it on yet; the drive
enclosure's fan has seized, and the main enclosure has a key switch....
As I found it, the arrangement of cards has gaps, unless the backplane is
*really* weird. The backplane itself is MDB model MLSI 40328 -- anyone
know the layout?
Any reason I couldn't just move this into a BA23?
The only non-obvious card in the system is an MDB DR11B... is this a
parallel interface?
--
Kevin Schoedel
schoedel(a)kw.igs.net
>
>The DRV11J with 64lines may be more resonable to work with.
>
>Allison
If you can find them. Current commercial value is $450+ for M8049's. I can
move them with 1 call typically and get calls for them all the time.
Dan
Okay, is this all true? I've never had the joy of VM.
-- forwarded message --
Newsgroups: rec.humor.funny.reruns
From: 22414843(a)wsuvm1.bitnet (Chet)
Subject: More IBM 3090/VM Humor, smirk
Why I like the IBM 3090:
First, there's the wonderful operating system, VM/SP which has SO many
advantages! Here are some of my favorites!
1. All of your files are in the same directory, you don't have to
worry about subdirectories and other nonsense,
2. For file names, not only do you get a file name, but you also get a
file type AND a file mode, with the name and type each being an
astounding 8 characters, plus a 2 character file mode, way more than
I ever had on my Apple II,
3. If you create a small file, it automatically makes sure it takes up
one 4K block on your disk, so you can add up to 4K of data to the
same file and not take any more disk space!!! WOW!!!!!
4. When you get an account you get an ENTIRE cylinder to yourself, an
amazing 465K, which is more than my 5 1/4 inch, single sided,
low density PC disk,
5. If a FORTRAN file is too long (250 lines) to compile on your disk
because the temp files fill up your cylinder, all you have to do is
unlink your A disk, create a big temporary disk, attach that as your
A disk, attach your old A disk as another disk, copy the source file
to the new A disk, then compile it,
6. You never have to worry about background processes, redirection, or
piping because the 3090 doesn't have any! Or command histories!
7. Or here (WSU) we are privileged to have RESLIM, which makes sure that
you don't use any more CPU time than you want to or have to,
8. We also have system administrators who also make sure we don't use
more CPU than we have to, not to mention they tell us what we can
and can not do, and what they think they legally can and can not do,
such as maintenance on our accounts to make sure there is nothing
wrong with any of our personal files,
9. If any files have sat in your reader/mailbox too long, they will
automatically be discarded for you,
10. And finally, all of the USEFUL on-line help! All you have to know
is the name of the command and whether it is in CP or CMS or SOFTWARE
or one of the other help menus, and you can get a GREAT description
of that command AND some examples how to use it like you would want
to every day!
Not only is the operating system fantastic, they have an AWESOME full
screen editor, XEDIT. Boy, it's quite a step up from EDLIN on my PC!
Just look how powerful it is:
1. If you want to move your cursor to the middle of the screen, all you
do is hold down the arrow keys until you get there.
2. If you wanna delete a whole bunch of characters in the middle of the
line all you have to do is hold down the DELETE key until they all
magically disappear.
3. If you wanna insert something, all you do is hit the INSERT key and
type in what you want, unless it's too long for that line, then all
you gotta do is split the line where you want by using the PF11 key,
which if you are on a VT100 is just an ESC minus sign.
4. After you do any commands in that neat prefix area, your cursor
almost always goes back to the command line at the bottom of the
screen.
5. You never have to worry about anything nasty like tab keys, there are
no tab stops by default (unless you wanna set them).
6. And, unless you tell it otherwise, XEDIT always creates fixed length
lines of 80 characters, so if you ever want to put more stuff on the
same line sometime later, there is room for it!!
Add to all of this such things as COBOL, disk linking, EBCDIC
character set (I mean who says J should follow I?), and even
some AWESOME graphics capabilities, and you'll have to agree that the
IBM 3090 is the system for me!!!!
(Thanx to those people who sent me some of the ideas used herein)
--
----------------------------- personal page: http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu
-- FORTUNE: Today is an excellent day to have a totally rotten day. -----------
I have a box of five "Genuine Centronics Zip-pack Cartridge Ribbons" and one
ribbon that's something else. If anybody wants them they're $5 shipped.
Tom
>Jerome Fine replies:
>
>I have attempted on a number of occasions - all without success - to
>get a CD on a CMD220/TM host adapter on a PDP-11 system
>under RT-11. I suspect that I am using the wrong CD drive. Does
>anyone have any suggestions as to model number that would work?
>I have asked around and there does not seem to be any DEC CD
>drives available like the RRD42.
You need a CDrom that can do the different block size that DEC
systems (software) require. Many of the older Toshibas seem to.
Allison
From: Chuck McManis <cmcmanis(a)mcmanis.com>
>At 09:27 PM 8/9/00 -0400, Allison wrote:
>>Read up on parallel ports for PC first, the M8027 WILL NOT be
sufficient.
>>Most parallel ports ahve enough bidirectional lines and the 8bit data
is
>>bidirectional (only the old XT ports aren't).
>
>I have, and they are, _if_ they are CENTRONICs compatible. There are 11
>output bits and 6 input bits. When you have such a port on your PC (and
>even PC/AT and some 386 machines had them) you could use them in
"nybble"
>mode. In this mode four of the 8 data bits are outputs, Busy/SLCT/Paper
Stiill it's of no help to you as the DEC cards (LAV and LPV-11s) are
useable
for centronics but, are data products interface as such you have only one
programable ouput bit (D8) and three input lines (busy, online, error).
The done bit reflects the status of the transfer (ack recieved in
response
to strobe).
The M7941s are general ports with 16 out and 16 plus strobe and req
lines.
You have to deal with the fact that the lines are seperate and not
inheirently
bidirectional.
The DRV11J with 64lines may be more resonable to work with.
Allison
From: Chuck McManis <cmcmanis(a)mcmanis.com>
>At 05:42 PM 8/9/00 -0700, Zane wrote:
>>Is the LPV11 a bi-directional port? If you're trying to talk to a
Parellel
>>port Zip Drive I believe that will require a bi-directional port.
>
>Not the old ones, they wrote 8 bits out and did "nybble-i/o" in for
>non-bidirectional parallel ports. Makes them significantly slower on
>transfer rate but their still faster than an RX50 :-)
>
>--Chuck
Still, the LPV11 does not have a lines the average PC port has
with respect to bidirectionality and that includes some of the
control lines.
Allison
Can whoever I was supposed to ship the TI Explorer floppy disks to, contact
me again and give me your shipping address?
-Lawrence LeMay
lemay(a)cs.umn.edu
Mike typed thusly:
> There was
> also a Apple Color RGB monitor that worked specifically with
> the Apple IIgs and I think the IIc/c+.
Ta for that - I need to find one of those for the museum then :) It just
looks like a Mac monitor in some of the ][GS pix I've seen.
cheers
a
>Allison's right, an M8027, LPV11 (Q-bus version of the LP11). I'm not
>interested in driving a printer with it, I want to talk to a Zip Drive.
As
>long as I can create a "Centronics" compatible interface (even with all
8
>data bits being output only) I have a chance of getting it to talk to
the
>zip drive. That would give me 100 MB of removable storage, on a PDP-11
that
>would be like heaven.
>
>--Chuck
Read up on parallel ports for PC first, the M8027 WILL NOT be sufficient.
Most
parallel ports ahve enough bidirectional lines and the 8bit data is
bidirectional
(only the old XT ports aren't).
Look into a m7941 (DRV11) parallel line unit sa that give you lots of
bits for
parallel IO. Another would be the M7950 DRV-11B general purpose DMA
interface (also a parallel IO). The latest one was the DRV-11J (M8049)
and that has enough lines to interface anything (32 in and 32 out).
The later boards could possibly even be enough to fake the IDE interface
directly. Even an old clunky 120mb WD2120 would seem large!
Allison
