19 Mar
1999
19 Mar
'99
2:43 p.m.
I would like to put together a simple PDP-11 system.
I've got a M7270
card (LSI 11 processor) and an M8044-DB card (32KW MOS memory). I've also
got a couple of PDP-11/03 and PDP-11/23 rack chassis that are both QBUS.
I've also got a pair of RX02 drives. Does the M7270 go into an 11/03
chassis?
Yes, it does... same ole' qbus...
What other cards would I need to build a usable '11
? No doubt a floppy
controller card of some sort (although I also recently got the DSD440 to
go with the funky RX02 emulator card) Some sort of serial port for a
terminal (M number?) What is the minimum RT-11 system?
You'll need processor (M7270), memory (M8044), serial line card
(dlv11-J, M8043), boot/terminator (BDV11, REV11, etc), disk
interface card, disk, terminal. Of that list, I think you'll need a
BDV11 or REV11, unless the disk controller you have has on-board
boot (which the DSD880 controllers do have).
If I remember correctly, RT-11 originally booted in as little as
8kb of memory. Later we had to increase the minimum to 12 or 16 kb.
I also picked up the programmers panel for a PDP-11/10.
I'd love to put
together a PDP-11/10 if I new what to look for.
I wish I'd known earlier... I have a couple of pdp-11/05,10 chassis
which I am giving to a group in Rhode Island...
Megan Gentry
Former RT-11 Developer
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