25 Feb
2003
25 Feb
'03
12:30 p.m.
Ethan Dicks wrote:
--- pavl <pzachary(a)sasquatch.com> wrote:
the later console/SLU is common and adds a handy clock, but an awful lot
of the machines I've met had two, or in one recent case I saw a
11/45(very early) with about six... even my pdp-8/L has addidional
serial ports.
I would strongly recommend using TU58.exe on a
host pc to emulate a
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 was
a boon that a low-end Qbus machine commonly came with a DLV11J with a
port for the console, a port for a TU58 and two more ports for DECwriters
or machine-to-machine communication or whatever.
It's easy enough to _add_ a second SLU card, (DL-11something), _if_
you have one lying around (which I expect he doesn't).
ISTR vtserver wants something 30kw?
the problem here is finding RT11 (see mentec,licence,endless moral
posts), esp. one that is old and small, even then, old RT11 has some
problems so you don't want to if you don't have a good reason (I'd love
to have something that would run on my 8KW 11/20) so V5 wants 16KW just
to say hi, V4 is only slightly smaller.
Pavl_
to boot RT11 off virtual tape so you can poke
around and build a system
from there.
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.
VTserver is really amazingly great, but you may
not have enough ram and
booting RT or XXDP from a slu will give you better diagnostics to assess
your RK05,etc
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.
-ethan