I'm looking for something Unix-ey to run on this 80286 system. It
has 640KB RAM, and uses prorietary memory modules, so even Minix is
going to be an extremely tight fit. Mostly out of curiosity, I'd like
to try Xenix on it.
Does anyone have install images I could "evaluate"? Xenix 286 was
apparenly (judging by some BIOS parameters) a supported OS on this Compaq.
Doc
turns your pc (286 or faster) into a logic analyzer
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
It is a gag. This photo is described in detail on snopes (a "mythbusters"
site). The base setup is actually a submarine control room in a museum to
which a few things have been changed and added and the description created.
>> This has got to be a gag, but what's its origin?
>>
>> http://subjunctive.net/images/2004/rand-home-computer.jpg
>
>I don't have graphics, but I think most of the picture you're
>talking about is a nuclear sub's reactor/electrical/steam control
>panel that's on display in the Smithsonian, with a DECwriter
>and guy and TV screen photoshopped on top. Am I too far off?
I do it the old fashioned way, with a high-speed connection, two browser
sessions, and stop watch!
>I think that hidden away in the Ebay user license is something about how
>external services have to pay some sort of fee in order to interface with
>Ebay. This is why there are not hoards of freeware versions of Power
>Lister, and anooyingly to me, not a good Mac version. This is also
>probably why free sniping programs are not forthcoming.
>
>I suppose Ebay can invalidate bids or users that use services that do not
>pay this fee.
>
>Time to move off Ebay, folks.
>
>William Donzelli
>aw288 at osfn.org
"Zane H. Healy" <healyzh at aracnet.com> wrote:
>>Saw an interesting discussion about CD-ROMs with MSCP SCSI (YES, a
>>CD-ROM ISO with XXDP would be truly awesome!) and this got me thinking
>>about my own UC07 controller - if I've understood correctly, this
>>controller does not support SCSI tape.
>>
>>I don't really know anything about MSCP or the SCSI command set that CD
>>writers use - but could a CD-R(W) drive be used as a backup device?
>>
>>I know it's bad style to do backups on CD-R, but bear with me :)
>
> I don't see why not, but you'll have to write the software to control it.
I very much doubt it. Writing to a CD-R is not done the same way as
writing to a disk. And MSCP-SCSI controllers only do writes as to a disk.
CDs need to have lead-ins, lead-outs and whatnots in between.
(Underruns, anyone?)
> You're also likely to find that it's very picky about what it will work
> with. At least with my Viking QDT and UDT controllers I *think* 512-byte
> blocks are a requirement, and I know they won't work with all 512-byte block
> CD-ROM drives.
My CMD controllers have been happy with every CD drive I've tossed at
them, but I admit it hasn't been that many different models, so I might
have been just lucky.
> An easier sollution is to have the SCSI HD's in removable trays, and Have a
> modern Unix box with the same type SCSI tray. Plug the PDP-11 disk into the
> Unix box, and use 'dd' to image the disk. The resulting image can even be
> used under SIMH.
That would definitely be easier. If you wanted backups, you could then
burn that image to a CD on the Unix box.
>>Also, now that I think about it, the perverse bugger that I am, could an
>>MSCP controller send an Audio CD Play/Next Track/etc. command to the
>>CD-ROM? Would be awesome to have a hifi controlled by the PDP-11. :)
>
> No clue, but I rather doubt it.
Same problem. SCSI command to play around with audi CDs don't have any
corresponding stuff in MSCP, so there is no way to map that.
In short, MSCP can't do it. Don't matter what SCSI can. You are limited
to what MSCP can do, since it is a MSCP controller. What it talks at the
other end is pretty irrelevant.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hey, I have two MSV11-QBs here, each 2 meg parity QBUS memories.
I'd like to put both in the same system, creating a 4 meg PDP-11, but I
can't find the DIP switch settings for them.
The PCB in the PDF has the DIP switches placed differently on the board,
and the settings I try don't seem to work, I'm throwing memory errors,
and the boards appear in the wrong places.
the PCB revision is 5017547-01-D1-P2 while the PDF depicts a C1. I don't
know if that's the problem, but the boards do look different.
What I previously had was
__Q22_______ _______Q/CD______
/ \ / \
|Emul|DHV-|DHV-|DELQ|Gran|MSV-|PDP-|
|ex S|11 |11 |A |t co| 11 |11/ |
|CSI | | | |ntin| |83 |
| | | | |uity| QB | |
| | | | | | 0- |CPU |
|----| | |----|----| 2m | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
7 6 5 4 3 2 1
What I've changed it to is:
_______Q22_______ _______Q/CD______
/ \ / \
| |TK50|DHV-|DHV-|DELQ|MSV-|MSV-|PDP-|
| |Cont|11 |11 |A |11 | 11 |11/ |
| | | | | | | |83 |
| | | | | | QB | QB | |
| | | | | | 2- | 0- |CPU |
|----|----| | |----| 4m | 2m | |
|RQDX|Emul| | | | | | |
| 3 |ex S| | | | | | |
| |CSI | | | | | | |
| | | | | | | | |
| | | | | | | | |
8 7 6 5 4 3 2 1
With both memory boards in, the CPU diag ROM reports that I have small
ROMs placed around the memory space and one RAM board somewhere in space
of some strange size. I assume that's because the DIP switch settings
are wrong.
Anyone have the docs? Or know what the DIP switch settings are for
setting them to 0-2M and 2-4M?
Thanks very much in advance for your help!
-toresbe
I was contacted by a gentleman who wishes to purchase an ADM-3A.
He is located in Northern VA.
If anyone can help, please contact Jim at:
jAt {at} feeCzell {dot} Ccom
[Remove the capitals and do the appropriate conversions]
Or contact me and I will pass it on.
Dave
--
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html
>From: "Miriam Mustain" <pmustain at ispwest.com>
>
>We are in San Diego, California. Mir
>
>>Hi:
>>My mother has the following equipment and would be willing to donate it if
>you could pay the shipping.
>>
>>Macintosh Plus 2MB
>>Model # M0001A
>>Serial # *F745B8SM0001A*
>>FCC ID # BCG9GRM0001A
>>MacWrite and MacPaint discs
>>
>>Apple 3.5 Drive
>>P/N 825-1304-A
>>Serial # Y780BFJ
>>
>>Image Writer II Printer
>>Model # A9M0310
>>Serial # 0591245
>>FCC ID # BCG9BUA9M0310
>>
>>The printer is a very pale yellow color in comparison to the neutral tan of
>the computer. I can't tell whether this is due to age or its original
>color.
