I have a question. I use the USB port for serial. In my program, I use a fixed com port. When going to the control panel, I find that I see (in use) tags on some of the com ports. I'm the only one currently using the com ports but recently another (in use) showed up, requiring me to modify my program to use another com port. How does one unuse a com port? how do I find out what is using it so I can stop it? I'm using windows 7 professional. Has anyone else had this problem?
I?ve come into an HP-Apollo 9000/425t which uses memory boards with 72-pin headers rather than using SIMMs.
Based on what I can see in pictures online, the boards themselves don?t appear to be anything special (they just carry TMS444000 etc. DRAM) and the connections aren?t anything special either, so I figure it shouldn?t be hard to design a SIMM adapter.
Does anyone have or know where I could find the pinout and timings?
I'm wondering if anyone knows where to find a copy of some software to
make an IBM 3270 Emulation Adapter (the short ISA one) useful. I hear
that IBM's PCOMM/3270 2.0 - 4.0 or so will work (on DOS) with the
I'm trying to use a simulated RX02 disk (under simh) with RT-11
and can't seem to get the DY driver to install.
Here's the relevant log:
sim> set ry enabled
sim> att ry0 ry0.dsk
RY: creating new file
RY: buffering file in memory
?KMON-F-Invalid device installation DL0:DY.SYS
DY .SYS 4P 20-Dec-85
1 Files, 4 Blocks
14841 Free blocks
I've tried with 2 different software "kits", the one from the simh site
and the one from bitsavers.
I'm interested in looking at any published drafts prior to the C 1989
standard. I found X3J11-88-090 here:
That makes mention of the previous draft being X3J11-88-001. Does anyone
still have a copy of that draft, or other pre-89 drafts?
I'm not looking for any of the published standards (I've purchased them),
nor any drafts after the 1989 standard.
> From: Paul Koning
>> The DEC font uses a zero with a slash
> For that, a capital O with a slash would probably serve.
Actually, it turns out that only earlier panels (e.g. KA10, TC08, etc) use the
slashed zero; later ones (KI10, RP11, etc) use the ordinary ones. Since our
panel is intended for use with the RPV11-D, the unslashed is OK.
Thanks to all for all the help with the font; did anyone have any comments
on the _layout_ of the inlay (here:
for those who missed it among all the other messages).
I have a dual density 88780B. Is it possible to upgrade to quad density by
Or does someone have an 800bpi 9-track on SCSI Incan borrow or buy?
I have a pair of 1984 pdp11/70 UNIX SysV (R0, R1?) tapes that need to be
I have a VAX730 with both TU58 drives destroyed (capstan melted, need
I also have a bunch of cassettes, but unfortunately all seem to have
problems with the bend and/or bad spots on the tape.
Possibly I would try to replace the broken bands (if I find a source)
and/or replace the magnetic tape when damaged (I was thinking to try
with audio cassette tape, don' t know if metal oxide high density tape
could be good for it).
Anybody has some information about the coercivity of original DEC TU58 tape?
One problem indeed is the need of reformatting the tape, but: if I can
emulate the TU58 drive using a serial, would it be possible to send
raw commands to the drive using the serial and a PC?
PS-If possible, some good-condition cassette would be very useful to
me too. I'm located in Italy.