As previously posted, I recently finished building a Mark-8 computer
(8008-based). It works great - in fact, I just added an EPROM board so I
can run demo programs and eventually bootstrap from paper tape last night.
The problem is, I only have 256 bytes of RAM. I would like to find 3 more
banks (24 chips) worth of 1101 RAM chips. If anyone has any they'd like
to trade for a brand new Harris 1802 microprocessor (build your own ELF!)
or other chips, or cash, please let me know.
(By the way, if you contacted me in the last couple of weeks about the
free stuff, it was all left at Mailboxes Etc. last night, and should be
going out today via UPS Ground. I'll e-mail the recipients off-list today
or tomorrow to confirm, and let you know the total for shipping.)
my previous message without html - I hope
> 2) Ultrix-32 V2.2-1 Supp TK50 1988
>
> With this tape marked 'SUPP' I suspect that I
> only have the one tape of a multi-tape set.
IIRC there were only two tapes in the set - SUPP
and UNSUPP. SUPP (which you have) is the only one
you require to get going.
> What are you considering new? I am looking at
> the Ultrix 4.x Basic Installation guide dated
> 1990 and it lists over a dozen uVAX's,
> VAXservers, and VAXstations.
I have seen an:
ULTRIX AND UWS V4.3 SUPP/UNSUPP (VAX)
CD from September 1992 and note that a VAX
CD-ROM for Ultrix is mentioned in ULTRIX V4.4
documenmtation. So it looks like VAX was
supported by ULTRIX until ULTRIX expired (can't
remember - was there an ULTRIX V4.5)
Doug.
I have a Super Eagle and (I think) six Eagles still available for pickup
in the Seattle area. Some should be working but others may not be, all are
as-is. It really pains me to just toss old hardware, but I don't have space
to have these just sitting around anymore, so unless I hear from somebody
by the end of the month, they're bound for the dump. I almost had a deal
for them at the end of 2000, but I suspect that was just before the Computer
Garage had to move, which is enough for anybody to deal with at once.
--James B.
In a message dated 3/11/02 10:08:07 PM Pacific Standard Time,
doc(a)mdrconsult.com writes:
> I've been looking for info on an Altos 580. It's pretty thin. The
> little I've found shows the db25 connectors as rs232s, and mentions
> terminals. Does that mean I can get a console on my trusty MicroTerm?
> If not, are there any peripherals anywhere? Display, keyboard, an OS
> maybe?
>
One of my favorite systems, Multiuser Z80. I had several of these about 1990.
Only one of the serial ports is the console port, zero IIRC. Should work with
a standard serial terminal, Wyse 50 etc. Your MicroTerm should work. Uses a
serial printer also.
I am not sure I can trust my memory without pictures as to the layout of the
db25. IIRC (L to R) Ser Printer, Terminal, Terminal, Console? I don't
remember if there was a serial modem port or not.
No SW any more, sorry I hope you find some, it is a nice little computer.
Paxton
does anyone know if it is safe to yank the logic board from an HP
LaserJet II and stick it into an Apple Laserwriter II NT. I know they are
the same printer engine, with just minorly different features (Apple has
no font slots for instance).
I have a pseduo broken HP and a fully working Apple, but I want the
parallel interface. So rather than buying a kit to fix the paper pickup
problem the HP has, I was thinking of just swapping logic boards.
Is this possible? or will I blow something? (I'd rather not just blindly
experiment, since I am running short of working laser printers, and can't
afford to trash these)
-chris
<http://www.mythtech.net>
Hi,
here is the next movement:
After I found out that the ULTRIX 4.5 tape's standalone kernel
doesn't support the 6400, even though ULTRIX 4.5 says it supports
the 6400 and 6500, (duh!) I had to help myself. Fortunately there
is SIMH/VAX and with that I could install ULTRIX 4.5 (manually,
the scripts didn't work). Now I have the image of an RA90 drive
with a proven bootable kernel and the basic distribution that
will allow me to do everything else from there, once that is up.
This is what I did to transfer that image to an RA90:
1) net-boot uVAX-II with NetBSD from my FreeBSD laptop :-)
2) write the gzip-ed image ra90.bin.gz to a TK50 tape
# dd if=ra90.bin.gz of=/dev/rmt0 ibs=1024000 obs=512
3) boot VAX6400 with VMS
4) on VMS transfer the gzip-ed file to a VMS disk file
$ MOUNT/FOREIGN/BLOCK=512/RECORD=512 MUC6:
$ COPY MUC6: RA90_BIN.GZ
5) mount an RA90 disk forreign
$ MOUNT/FOREIGN DUA1:
6) unzip and transfer to that disk
$ GZIP :== $SYS$ROOT:[GUNTHER]GZIP.EXE
$ DEFINE/USER SYS$OUTPUT DUA1:
$ GZIP -d -c RA90_BIN.GZ
the hope is that the above would emulate what on UNIX
would have been:
# gzip -d -c ra90.bin.gz |dd of=/dev/rra1c bs=512
7) that takes forever. After an hour or so, I stopped the
process, because I figured I didn't have to write all those
trailing zero-bytes to the disk.
8) cheked if anything reasonable had been written to the disk
$ TYPE DUA1:
and indeed, garbage shows up that looks like it is the first
blocks of that image.
8) reboot VAX6400
>>> BOOT /R:0001000B /XMI:B DUA1
when it comes to loading system software, it immediately HALTs
after accessing the disk for a moment. Sounds to me as if
it didn't quite get a proper executable master boot block.
The question to all VMS gurus is then: did I do anything wrong
with the mount/foreign dua1, what is the blocking used? Since
I cannot specify /block and /record for disks, I assume that
the block is one sector. Does VMS write to the sectors in a
different ordering? Does a mount/foreign spare the master boot
blocks and begin writing with an offset of a few sectors?
Thanks,
-Gunther
PS: I guess if noone can give me a hunch on how to do this simple
thing with VMS, I will just have to wait until I get my KDA50 boards
to use with my uVAX-II so that I can write the disk using NetBSD.
Ah the fun of interfacing!
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org
Since this is arguably an on-topic machine, I think I can probably
get away with asking here.
The hard drive on my Indigo2 is about to give out -- at least I
believe this to be the case, since "Internal diagnostics predict
the drive will fail soon" ;)
Now, this machine has a 2.1G drive right now, but If I'm going
to replace it, I'd like to replace it with something that I can
capture some video on, which means at least 9G (or up to 21G).
I believe the bus on this thing is normal SCSI-2, which has never
been a problem for me. The problem I find now is that all the
drive with the capacity I'd like to have for it are Fast/Wide/
Ultra/SCA/New/Improved/God-Like SCSI drives (Now with Vitamin C).
:)
I guess the question is:
Do they make a normal SCSI-2 drive that's about 10G or larger?
(better if it fits in the 3.5" by 1" (or so) sled)
If not, is it possible to plug in an ultra SCSI drive? Will the
drive slow itself down to normal speed if it's properly adapted?
Has anyone tried either of these things? I am interested in both
theory and practice, here.
Lastly, what about a SCSI-2 hardware RAID (cost, etc)? What about
a Fiberchannel interface for this ting (is there even such a board?)
Thanks,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
I've uploaded three more manuals to my site today.
BA11
DRV11-J
DZ11
The last few pages of the DRV11-J is a reference card.
I had plans for more today but our new mainframe was delivered so the day
went away rather quickly.
I should have RL01/RL02, RM03 guides up tomorrow if I do not run out of drive
space.
Enjoy.
Brian.
www.webwirz.com
