Claudio Calvelli wrote:
Any use for a PDP-11/73? I haven't switched it on in years but it
does work.
Apologies I meant PDP-11/53 (actually very similar)
What's in it?
/me goes looking inside the PDP-11
KDJ11-D/S CPU board with a 15MHz CPU, 1536 (count 'em) kilobytes of RAM,
two serial ports
(http://home.alltel.net/engdahl/KDJ11.htm)
One DHQ11 LINE ASYNC COMMS board, adding 16 more serial ports
TK50 tape unit and M7546 controller (and one tape)
Seagate ST-251 40Mb hard drive
(http://www.seagate.com/support/disc/specs/mfm/st251.html)
with M7555 RQDX3 MFM disk and floppy controller
Pretty decent spec then.
Sadly, no M7504 ethernet in it, and given you can buy a new computer for
the price one of these sell I don't think I'll be putting the PDP-11 on
the network, unless I can use the 18 serial ports for MLPPP...
I believe RSX-11M may speak DECNet over a serial port.
No software on it, it appears to have been wiped clean before it reached
me, but it will run BSD 2.11 if anybody can write a TK50 tape or has a
QBUS system which can take the TK50 controller.
Have you got any removable media besides the TK50? I've got RX02s with
RT-11 on them, and also some couple of RL02s. Getting a "real" DEC
operating system on it wouldn't be a problem ;-)
Gordon.
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