Well, I drove up to Canada yesterday and picked up the
Burroughs B80. That thing is HEAVY. It was down in the
basement, and took several of us to get it out.
Unfortunately, while the two sections of the main unit
(CPU and console) will unbolt, they can't easily be
separated because of the massively complex wiring
harness inside. You'd think they would have put a few
convenient connectors in there. But, that meant that
we had to move the main unit up as one piece - it's
the size of an office desk and weighs several hundred
pounds.
The power supply was an interesting beast, and I am
unsure of it's purpose. The B80 has a hefty power
supply inside it - with transformers and regulators,
and seems perfectly capable of being connected to the
wall directly. But along with the system unit is a
power supply box - 23" wide, 30" tall and 29" deep. I
didn't pull the panels off it, but the computer was
direcly wired into it originally, with a heavy three
conductor cable. (well, sorta directly. A three
conductor cable came out the back of the unit, with no
connector - and the computer had no power plug on it
either. He had it spliced to the power supply's output
with tape. ) I really think that this power supply box
is only a UPS - but he claims that the computer won't
work without it. Maybe it's a power conditioner of
some sort? Step-up transformer? It takes 240v in, and
I am unsure of the output/computer input. The power
supply is a nondescript box with breakers and outlets
on the back. I'll know more when I can pull the covers
off it.
The disk drive was simple to move, it was a slim
little rack, 44" tall, with two drives in it - they
appear to be Diablo style drives. Amazingly simplistic
mechanisms. Looks more like a giant floppy drive than
a removable platter hard drive. Exposed heads and very
few boards on the drives. There's a controller
interface board on the bottom of the rack that they
plug into.
I was more concerned with moving the computer than
inspecting it, but I don't recall seeing any kind of
standard looking interface ports. I believe that the
B80 can support extra terminals, but I don't see it.
Hopefully, when I get it going, I can connect
something external to it and back up the disk packs. I
have 11 packs, at least one of which is the operating
system, MCP. And yes, this computer predates Tron.
I do not have any manuals for the machine. There are
some documents on Bitsavers, so hopefully some will be
close enough for me to figure it out.
-Ian