< One thing I'm a bit surprised by is the speed of the video being much
< faster than I'd imagined it would be. Now to get some software to run
Why? DEC would and did do things to keep it from being a turkey. The
Video is not a simple bit map and there is a drawing engine in there.
Also VAX instruction set is fairly efficient doing bit manipulations.
< on it; I've found some stuff already, but can someone point me at some
< share/freeware software to run under DecWindows (besides the DECUS
< archives)? In particular, I remember using an ephemeris program in schoo
< that I could swear was freely distributed.
Check, there was a fairly good flight sim and other stuff as well.
< Does the DECUS hobbyist license cover all versions of VMS/DECWindows?
V5.4 through 6.1. It may work with earlier.
< I'm running 5.2 on this machine; would upgrading to 6.1 noticeably degra
< performance? Would additional features balance out any slowdowns? Beside
< new features, my entire manual set is for 6.1...
Having manuals is a good reason to be at that level. being at 6.1 may
slow it a tiny bit but it's worth it. The other end is for 6.1 I'd call
a 200mb scsi the minimum acceptable where 5.1 you can get by with 121mb.
However a 400mb-1gb small scsi should not be hard to find cheap.
Allison
On Nov 26, 12:49, CLASSICCMP(a)trailing-edge.com wrote:
> Subject: RE: Need DTC brand Qbus SCSI board info
> >No LSI chips on board; only two ROM chips (82S123N's with paper labels
"LSH
> >1" and LSD0" typed on them) plus others are typical 74xxx-series chips
(LS,
> >S and 7400-series) except bus I/F chips are the typical DS8641N's.
> >It is suspected to be SCSI as there is a 50-pin pin connector on the
> >ejector end and a tag on the antistatic bag has "Probably SCSI" written
on
> >it by what is apparently a DEC dealer/reseller in Pittsburgh.
>
> 50-pin connectors might hint that it could be SCSI, but it could be
> a lot of other things too. 8-inch SA800-type floppy is the most obvious.
>
> DTC also sourced some boards which were controllers for SA1000-type
> and SA4000-type hard drives.
It could also be a QIC tape controller; I've seen dual-height versions of
those from about that era.
I doubt it would be SCSI in discrete logic (no LSI) in that small a space.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Aaron Christopher Finney <A_Finney(a)wfi-inc.com> wrote:
>This is an ATR8000 with a CO-POWER upgrade board. Like you said, it
was
>an 8088 upgrade with 256k RAM and let you run MS-DOS and CP/M-86.
In >CP/M mode, you could use the extra memory as a RAMdisk.
Maybe what I have is just a partial system.
There's nothing on my board that can run native CP/M (ie, no 8080 or Z80
processor). It's just one board carrying the 8088, RAM, (boot?) eprom, and
logic. It's not even clear how it connects to anything else--apart from an
empty dip socket in the corner and a couple of lugs to connect +5 vdc,
there's no obvious electrical interface. Of course, I have no documents to
help me :) Clearly I don't know what I'm missing: is there another base
board that's supposed to go with this "Co-Power" card?
>It wasn't just for the
>ATR8000; they also made them for Kaypro, Osborne, Xerox, Zorba, and
>Bigboard.
Did they make a different model for each host computer, or did they use a
single pcb design with different interconnects and/or eproms to suit each
target system?
<snip>
>I got a bunch of price-lists/product brochures with this one, and
will
>scan it all and make it available in the next few days for anyone
>interested. BTW, does someone have the actual owner's manual for
it?
>Funny enough, with all these books and papers, the only thing I am
really
>missing is the honest-to-god owners manual. A scan or copy of one
would
>be much appreciated.
I'd love to find out more.
Arlen Michaels
amichael(a)nortel.ca
On Nov 26, 9:42, Allison J Parent wrote:
> Subject: Re: Front Panel Theory
> < Do you mean if you execute a HALT instruction?
> No. Halt is a instruction. WAIT/ is a device pin.
> the WAIT/ state on z80 does not generate refresh as it's a extended T2
> state and refresh is not output until the cpu proceds to the T3 state.
Yes, I know - but you wrote "halt" not "wait" so I was surprised (and it
was late at night, so I didn't think about what you probably meant).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
>No LSI chips on board; only two ROM chips (82S123N's with paper labels "LSH
>1" and LSD0" typed on them) plus others are typical 74xxx-series chips (LS,
>S and 7400-series) except bus I/F chips are the typical DS8641N's.
>It is suspected to be SCSI as there is a 50-pin pin connector on the
>ejector end and a tag on the antistatic bag has "Probably SCSI" written on
>it by what is apparently a DEC dealer/reseller in Pittsburgh.
50-pin connectors might hint that it could be SCSI, but it could be
a lot of other things too. 8-inch SA800-type floppy is the most obvious.
DTC also sourced some boards which were controllers for SA1000-type
and SA4000-type hard drives.
>It could be an earlier SASI type board too as the date codes on the chips
>run from mid-1982 to a few from the first weeks of 1983. IIRC, that's
>around the tail end of the SASI protocol days and beginning of the SCSI
>protocol.
>Anyway, I need to get info on this to see if it could be used on either my
>MicroVAX II or MicroPDP-11/73.
If it is a SCSI/SASI controller, it certainly isn't MSCP-emulating, which
would make it not particularly useful for a stock OS.
You can always plug it into a machine and scan the I/O page to see what address
it turns up at. This will give you a big hint as to what it emulates (if
anything!)
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
missed the start of this thread, but:
>NOTE: X-Window terminals were often crammed full of memory (2 to 16meg
>generally), usually SIMS. This often gets stripped first, even before the
>surplus shop gets it.
they generally (always? think it's actually part of the system design on
some boxes) need a boot ROM to boot from a host system (maybe some sort
of binaries for the terminal held on the host server too?). I gather
that these ROMs were often purchased seperately from the terminal itself
(presumably several giving different configurations for a particular
terminal were on offer) and so you may have a terminal without the ROM,
in which case getting hold of one might be interesting...
cheers
Jules
>
Hey S100/CPM fans...
I managed to collect the following:
5 Compupro 85/88 cpu cards 8085/8088
5 Compupro System support cards (extended interrupts, RTC and more)
3 Compupro Disk-1 DMA floppy controllers (does both 8 and 5")
2 Compupro DISK-3 DMA Hard disk controller (MFM)
1 CCI Printerfacer printer buffer card
MANY Compupro Interfacer I/2/3/4 cards
Some compupro RAM16, RAM20, RAM21
All expected to be good as they were removed from regular service in 93/94
time frame and clean. I also have DOCs for the boards maybe more.
Also several Intergrand dual disk mounting boxes for hard disks
or floppies. These can mount full height floppies or hard disks
and have nice power supplies. Suitable for MFM or SCSI drives.
They have MFM drives likely quantum D540 (31mb RD52) or fugitsu.
I have several dual 8" disk boxes with drives(2sided). Expectations
they are good. Also several loose full and half height two sided drives.
I also have several S100 crates (compupro, TEI and Intergrand)
all heaver than a small train. Two are BIG as they mount a pair
of FULL height 8" drives. Power supply is a moose!
And terminals... All Telvideo 9xx series and all work.
I've already taken out what I want so this is the EXCESS. Offers to me
off line. Shipping for the boards can be done. The boxes are local
pickup only as they are big and heavy! terminals may be shipable.
This will not be on Ebay or others. I'd like to get a nominal amount
plus shipping for my effort and the 100 mile trips it took to get them.
Allison
