Micro PDP 11/73

From: Lawrence LeMay <lemay_at_cs.umn.edu>
Date: Tue Nov 6 18:41:32 2001

>
> For one thing, whats the proper way to get to the cards? It looks like i may
> have to take apart the back end of this thing, which contains about 9 male
> DB25 connectors and a 2 digit LED numerical display... So far, I can tell
> I have the KDJ11-B CPU board, which is quad height unlike the A version
> which the web tells me was dual height. I can see there are cards in the
> upper 4 slots of the bus, and that there may be a total of 8 slots.

Tricky devils, someone put a huge 110V/220V sticker on the power supply
that was so large it also covered the screws I needed to open the back.

Well, I have a 1 Mbyte MOS RAM board, M3104 8-line asyncronous multiplexor
with DMA (can these be used as normal serial ports, or do I need more
external hardware?), a M7546 TMSCP controller for TK50 tape unit (which
I dont have), and the M7555 MFM Winchester & Floppy disk controller.

I'm assuming I just connect a terminal to the main console serial port,
and hope someone left me an operating system since I have no peripherals
at this time...

-Lawrence LeMay
Received on Tue Nov 06 2001 - 18:41:32 GMT