Just saw this: http://www.ebay.com/itm/331820201025
In case someone is interested. I was unable to quickly figure out if it
already was archived on bitsavers.
/Mattis
> From: Mouse
> A pity pdos.csail.mit.edu is willing to impair its accessibility for
> the sake of..I'm not sure what..by refusing to serve it over HTTP.
It's the latest cretinous-lemming craze in the world of high tech - we _MUST_
hide all our bits in encryption, because otherwise some dastardly, evil
government agency will peer at them ... or something like that.
Let's all just conveniently ignore the fact that if said government
agency/ies _really_ wanted to know what someone was doing online, they'd
perhaps infect that machine's bloat-/Swiss-cheese-ware, which passes for
contemporary 'best software practices', with a virus that would report every
keystroke ... or something like that.
Never mind! Everyone turning on mandatory HTTPS on their server, refusing to
even deign to talk to you without it, can sleep the oblivious sleep of the
morally superior, rigidly secure in the knowledge that they have done their
bit in the crucial fight of out time, to protect privacy and human rights.
... Or something like that.
Sorry. You pressed one of my hot buttons - one that is connected to several
other of my hot buttons.
Noel
I could do with getting hold of a VR241, but these seem to be pretty
unobtainable. So the alternative is to rig up an adapter of some kind to
work with a VGA LCD, which also saves on space. I came across the following:
http://www.vcfed.org/forum/showthread.php?38450-VR241-substitute-for-Rainbow
-VT240-etc, has anyone else tried this with success?
Regards
Rob
I finally have my own AT&T 3B2/300, and I'm having a heck of a time
getting disk images transferred to physical media.
I have here a set of AT&T SVR3.2 diskette images, apparently made (not
by me) using dd. I would like to transfer them to physical media in
such a way that they're usable by the 3B2/300.
Here's what I know so far:
* 3B2 diskettes are 720KB, Double Sided Quad Density (DSQD) 96tpi
* Each side is 80 tracks, 9 sectors per track, 512KB per sector
* Sectors use 3:1 interleave
* Physical media should be good quality DSDD
* The 3B2 fdc is a TMS2797 (WD 2797 compatible)
* The 3B2 floppy drive is a CDC 9429
On my PC, I'm using a venerable TEAC FD55-GV with the "I" jumper in
place, so at double density it should be spinning at 300RPM.
ImageDisk claims that reading and writing at 300kbps is successful.
I have been using ImageDisk to translate the BIN files I've downloaded
into IMD files with the following commands:
D:\> BIN2IMD DISK1.BIN TMP.IMD /2 /U N=80 DM=4 SS=512 SM=1-9
D:\> IMDU TMP.IMD DISK1.IMD IL=3
(The two-step translation is necessary because BIN2IMD cannot directly
write 3:1 interleaved data unless it's interleaved in the BIN image,
so you have to use IMDU to reshuffle things... it's complicated!)
Anyway, after doing this, what I end up with is a disk that is
_almost_ usable. I can boot off of it, but it fails shortly after
loading the UNIX kernel. I can run the 3B2's "dgmon" floppy
diagnostics on it, and they almost pass, but fail to reliably read and
write during the R/W test.
Now, here's the thing: If I use the exact same media and low level
format it _on the 3B2 itself_, the disks are 100% readable on the 3B2
and pass all floppy diagnostics with flying colors.
So I'm trying to pin down what about my setup is not right.
My pet theory right now is that the R/W gap and Format gap are wrong.
The default values for the gaps when calculated by ImageDisk are
24/64. I've played with 22/32, 34/62, and 42/80, all based on reading
the datasheet and/or old Linux "fdprm" settings, but nothing seems to
make the disks 100% reliable on the 3B2 when written on the PC.
Does anyone have any insight into the gap lengths used by the 3B2? Or,
have you successfully written 3B2 floppies from disk image before?
-Seth
--
Seth Morabito
what is tumble?
Ed#
In a message dated 4/3/2016 12:41:59 P.M. US Mountain Standard Time,
aek at bitsavers.org writes:
On 4/2/16 2:01 PM, william degnan wrote:
> Thanks for that. I could not find much about the 2116A (2114/15) software
> on Bitsavers or the HP museum site. Where else does one go for these
> manuals?
>
I have a bunch scanned, just need to post-process them. Now that tumble
is running in my new workflow, I'll see what I can do.
That is really neat to have an "A"
We have a few manuals in the library and a few paper tapes.
BUT! we recently were shipped crates of paper, some of which I
never saw before in my life.
There are some HP manuals in there Similar to what Al is mentioning.
I will have to look again
to see if we have anything out of the ordinary aside from the basic manual
set.
We have a 2116"B" here which was the Phx Union HS HP-2000 2000A main
processor than became the I/O processor for their HP-2000F when Computer
Exchange Inc. bought it. Unfortunately when I retired in the early 90's I
did not save all the paper tape. I have the stuff in the drawer in the
2000 ACCESS cabinet ( yea was a neat addition to add a pull out drawer in
the cabinet to keep taps, pens and etc in!)
A few white boxes showed up in the garage at home I noticed recently
when cleaning... always grateful to find neat stuff that got misplaced
over 20 years ago....
We will wait to see what Al comes up with and see if a fill is needed
from our sloooowwwwwwwww scanner.....
Ed
I have been looking at my DECmate II recently. I got an Italian version of
WPS 1.0 for it and that works fine, except that I don't have an Italian
keyboard so finding some of the characters is a bit tricky. :)
The machine came with an RD51 hard disk. I can't many references to MFM
disks in DECmate IIs. The disk will sometimes spin up and sometimes remains
motionless. I checked all three of the Darlington transistors on the drive
board and they seemed fine (I checked them out of circuit). However, unless
I have any really persistent problems getting the disk to run, I am not
going to bother trying to make it start reliably.
My main question though is this. From what I can see the WPS software does
not access the hard disk, the manual I have does not mention hard disks. I
executed the function for listing files and it said it found nothing,
whether that attempted to access the hard disk or not I don't know. Should
WPS be able to access the hard disk? Might it have been a later version that
used the hard disk? If not, then would one of the other OSs for the DECmate
II be able to access the hard disk? I don't have any other OSs for it
though, does anyone know where I might find copies?
I also have a graphics option board for the machine, which software actually
uses this option?
Any recommendations for how best to image RX50 diskettes? I want to preserve
the diskettes I have.
Regards
Rob
Pulled these out of the trash
http://petelancashire.com/gallery/main.php?g2_itemId=6062&g2_navId=x09e4617c
The first picture are for VAX the yet to be check in the second photo are
VMS for Alpha.
Now that I have that little VAX 3100 I only want to get it configured. Is
someone other there I should give these to, I want to make sure the
contents are not lost.
Bitsavers.org for example.
-pete
