OK, I'm thinking of doing a wierd mod on a VT100, just how much room is
inside one of them? I need room for a 7 1/2" x 9" x 2 1/2" board (the
2 1/2" is thanks to the heatsink and RAM), and would also like to be able
to fit in a smallish 250W PS (3 1/2" x 5 1/2" x 6"), and a 3 1/2" HD.
I've got 2 or 3 VT100's, but they're so buried it's going to take a lot of
work to get to them so was hoping to get an idea if there is room first.
Basically I'm trying to build a PDP-10 into a VT100 by using an Intel
D810EMO MicroATX board.
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| | Classic Computer Collector |
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
The Alpha was started by DEC in 1988 as a replacement for the VAX, it
extends the address space to 64 bits and switches from a CISC architecture
to a RISC architecture.
I've got a copy the Alpha Architecture Reference Manual (AARM) and the
Alpha Architecture Handbook (AAH) which combined give you everything you
need to know about the Alpha.
I'd like to offer them in trade to anyone who has EITHER:
KA640 Technical Manual
KA680 Technical Manual
Also published by Digital.
Tony Duell wrote:
> My guess is that clones used the same method. They tried to boot from the
> hard disk and floppy disk and then call INT 18h. Since there is no ROM
> basic, INT 18h points to a little bit of code that displays the No ROM
> BASIC message (as far as I can see this message is not in the IBM ROMs)
> and then halts the CPU.
This was the point to my original question: why would clone makers go to
the trouble of displaying the message and then halting the system, instead
of just *halting the system*? (Unless they were using stolen code.) Just
doesn't quite make sense . . .
On September 30, Fred Cisin (XenoSoft) wrote:
> OB_trivia: 1) what did GWBASIC stand for?
Years ago, I heard somewhere that it stood for "Gee Whiz" BASIC,
though I've no idea why or even if this is accurate.
I snagged a very clean Osborne at the Junk Fest today but no disks. I
thought I could use 22disk on my Wintel box but then found out the Oz is
single density and this Wintel box won't write single-density. Okay, so I
can use MFDISK10 on my Kaypro 10 to generate a bootable Oz, disk right?
Well, MFDISK10 is missing in action. Hmm. So I found and downloaded
MFDISK10 from the 'net, put it on a Kaypro disk, ran the program, and got
as far as "use the arrow keys to move around," but the arrow keys do not
move the cursor, so I am unable to select a disk type from the menu. Hmm.
Broken arrow keys? So, I fired up WordStar and the arrow keys work fine in
So, I need help in either:
1 -- finding out why the arrow keys don't work in MFDISK10
2 -- getting some other program to run on my Kaypro which will create Oz
3 -- obtaining some Osborne disks (last choice)
On October 1, Iggy Drougge wrote:
> OTOH, the main strength of the DECstation is that it's a graphical
> workstation. Running it through a terminal would mean losing the graphics,
> and running it then wouldn't make much sense (it might at home, but we've got
> enough machines without any proper uses at the UG anyway =).
*A* strength of a DECstation is that it's a graphical workstation.
But it's certainly quite useful as a headless machine as well. I'm
not running any anymore, but as recently as a year ago I had a few
headless DECstations doing a great deal of real work.
i?ve got a VaxStation M38 with harddisk, but is has no drives. the
NetBSD-Install-HowTo says how to make boot-tapes (TK50). i could make a boot
tape with my (ix86) NetBSD computer, but i have no SCSI-TK50 tapedrive.
could i use an old qic tapedrive (also scsi, up to 150Mb)?
i also have an PDP-11/73, this one has two harddisks (RD54 maybe?), 4 megs
of ram, a TK50 drive (the connector looks like scsi, but in the drive only
few pins are connected, so i suppose this is not scsi) and 2 huge RL02.
there is no system on it. on a wbsite i found BSD 2.11 should run on this
pdp-11, but is it free? where can i get it? and again, how to get the image
on TK50 Tape without any SCSI-TK50 drive?
where could i get a scsi-TK50 drive?
maybe someone can help
On Sep 30, 15:43, Richard Erlacher wrote:
> BTW, the 8080 was a 2.5 MHz part, wasn't it? I've got a couple Intel
> where they generate a baud-rate clock from 24.576 MHz and generate the
> from that, at 2.4576 MHz for the CPU. That's on an i8080-2.
Sure you're not thinking of a Z80? The standard speed for the original Z80
parts was 2.5MHz (4MHz for Z80A and 6MHz for Z80H).
Pete Peter Turnbull
University of York