25 Feb
2003
25 Feb
'03
6:21 a.m.
On Tue, 25 Feb 2003, Ethan Dicks wrote:
My good old 11/10
had 4 DL-11's, thankyou. One for teh console
(in current-loop mode) which I believe was an LA75, and the other
three had either a terminal or a connection to the "big" PDP at
school (11/34a 7th Ed. UNIX) so I could play with things. I still
have my console DL-11 here- its kind of sacred to me.
serial tape
drive on your second serial port (you DO have a second slu?)
On a machine that old? Unlikely. Machines of the era before the DZ-11,
and especially machines that were not destined for timesharing, tended
to have few serial ports, - a console and probably nothing else. It's easy enough to _add_ a second SLU card,
(DL-11something), _if_
you have one lying around (which I expect he doesn't).
DL-11W (with clock) or
DL-11E (w/ modem control) would be good.
As a place to put RT-11, a virtual TU58 isn't a
bad idea. Hopefully
wharever emulator you have can emulate both units - the TU58 is kinda
small, even compared with 8" floppies.
Thats how I had it then.. the
"disk server" ran on the 11/34a, over
the serial line.
How much RAM does VTserver require? Older versions of
RT-11 (those
contemporary with the 11/10) are usable at aroun 8KW, IIRC. Of course
the full 28KW is nice, especially if you want to run large apps like
ADVENT, but the CUSPS should all run with minimal RAM.
About 100K. The client
routine in the PDP-11 uses about 400 bytes.
--fred