Jerome Fine wrote:
.
Is there an actual Qbus - or something else? It
certainly
sounds like a Qbus!
The PDT has no Qbus. I believe the eBay auction has a picture
with the top cover off and the top board elevated - you can
make out a ribbon cable coming off the bottom board, and the
paper insulating sheet that sits between the bottom two boards
when closed.
Also, I presume there is no possibility of a hard
drive?
How many DL ports are available?
The PDT-11/150 was reportedly available with one or two RX01
drives, and three serial ports with another three optional. I've
only seen the one I own, which has both drives and six ports.
There're no other expansion options that I can recall.
In fact it's sitting in the dining room with a VT100 waiting to
be powered up to check some 8" floppies I received a while back.
I'm in the process of bringing up a VAX 4000/500 I recently
received and it'd be a hoot to connect the PDT to it.
Did RT-11 ever include DECnet support? Probably so, but as of
what version? I don't recall seeing mention of it with whatever
version came with the PDT, and I'd be amazed if the PDT could
support it...
--Steve.
smj(at)spamfree.crash.com (lose spamfree to get through, m'kay?)