The long delay in making a response is because I rarely check
classiccmp. Please accept
my apology. If anyone asks a question, I will probably not see the
question until the end
of November, 2018.
>Pete Turnbull via cctalk wrote:
On 18/10/2018 13:22, Don Stalkowski via cctalk wrote:
On We
>Chuck Guzis via cctalk wrote:
On 04/30/2017 07:38 AM, Mike Loewen via cctalk wrote:
Looking for recommendations for a bulk tape eraser for SDLT and DLT
IV tapes.
If it's just a small quantity to be erased, there are many Radio Shack
videotape erasers being offered, some NIB, all for
As I find that there is less and less need for my PDP-11 Qbus Hardware,
Software and Manuals, I wish to determine if there is any interest in my
local area to transfer everything using local pickup in Toronto.
As some of you know, my interest is in RT-11 on the PDP-11 and I have
been doing it sin
>Charles Dickman wrote:
I am looking for an RQDX3 compatible disk image for Dave Gesswein's
MFM disk emulator. I don't have a functional disk to image and the
ZRQCH0 won't cooperate.
I suspect that I don't really understand your question, but maybe the
following information might help.
For bo
>On Sunday, July 24th, 2016 at 22:17:24 -0700, Don North wrote:
>On 7/24/2016 2:37 PM, Paul Koning wrote:
>On Jul 24, 2016, at 11:06 AM, william degnan
wrote:
...
Attempts to boot from RT11SJ.SYS under V04.00 of RT-11 with 24K
bytes of memory were successful. Attempts to boot with 16K byt
>Al Kossow wrote:
Related to the RT-11 discussion, there is currently work going on to have a
simulated VT240 in MAME
working with RT-11 running in SIMH.
http://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=106655#Post106655
Is there any possibility of plain ordinary VT100 or VT220
I forgot to remove the "Spam Key" notice that my ISP puts into most of
my e-mail when I replied the first time - I apologize!!!
>On Sunday, July 24th, 2016 at 14::29:59 -0700, Don North wrote:
>On 7/24/2016 8:06 AM, william degnan wrote:
>On Jul 24, 2016 8:58 AM, "
On Sunday, July 24th, 2016 at 14::29:59 -0700, Don North wrote:
>On 7/24/2016 8:06 AM, william degnan wrote:
>On Jul 24, 2016 8:58 AM, "Jerome H. Fine"
wrote:
>On Wednesday, July 20th, 2016 at 18:02:44 - 0400, william degnan
wrote:
Is there a minimum memory requireme
>On Tuesday, July 26th, 2016 at 0:05:48 -0500, Glen Slick wrote:
I just acquired a PDP-11/84 that didn't come with a console panel.
That should have a 25-pin D-shell connector for the console serial
port, a baud rate selection switch, and a forced dialog switch, with a
single 20-pin connector fo
>On Wednesday, July 20th, 2016 at 18:02:44 - 0400, william degnan wrote:
Is there a minimum memory requirement for RT-11 v5? I was discussing with
Ray Fantini about it today, unsure...anyone know if 16K will work (from
00).
Bill
You need to be more specific! Starting with V05.00 of RT-1
I need to obtain a link to the DEC Permission to Copy Out-Of-Print
manuals. Might it still be at an HP site? Specifically, while just the
actual permission itself will be helpful, more important is to be able
to show that it still comes from an official source.
I saw the Permission Notice in th
>Dave Wade wrote:
I guess this is on-topic.
http://hackaday.com/2016/07/05/don-eyles-walks-us-through-the-lunar-module-source-code/
Check
>On Saturday, June 18th, 2016 at 11:22:19 +0100, Rod Smallwood wrote:
Hi
The great TK revival continues apace.
There's a TK50 in my VAX 4000 running really well. Purrs like a cat
I have TK70 in the RT-11 (11/83 QED) Machine that also runs.
TK70 should read the TK50 tapes. It tries but co
>Rod Smallwood wrote:
>On 13/06/2016 02:33, r.stricklin wrote:
The metal tape path rollers are used as tachometers to make sure the
tape is feeding at the correct speed. If the tape drags over them,
the firmware will consider the transport jammed and abort. A drop or
two of light machine oil
>Rod Smallwood wrote:
Firstly one important fact that I did not know. If you bulk
erase a TK50 you can turn it into a TK70 tape with an INIT.
Thank you I did not know that.
A bulk erase was the first thing that seemed to be the solution
since I had, fortunately, found a blank T
>Adrian Graham wrote:
On 12/06/2016 12:15, "Rod Smallwood" wrote:
Nearly there I think. I have loads of TK50 tapes to format.
I'm pretty sure the TK70 can only read TK50 tapes and not write to them...
Thanks Graham
Now that sounds highly likely. Does the TK70 controller supp
>Jerry Weiss wrote:
On Jun 11, 2016, at 10:14 AM, Jerome H. Fine wrote:
Rod Smallwood wrote:
I have had some success in fixing a couple of TK tape drives.
They now load and unload every time you press the button.
SFSG now to talk to them from RT.
Using the diagnostics on
>Rod Smallwood wrote:
I have had some success in fixing a couple of TK tape drives.
They now load and unload every time you press the button.
SFSG now to talk to them from RT.
Using the diagnostics on the format (RX50) disk the Identify function
shows the drive and by inference its controlle
>Rod Smallwood wrote:
In my quest for a working RX02 I'm trying to find out the best way of
checking out an RXV21 and get it talking to the RX02. I have most of
the standard diagnostics including XXDP.
The setup is an 11/83 with an RX50 and RD53. (I can boot from either)
In the box is
>Rod Smallwood wrote:
[Snip]
My 11/83 is back together and booting RT on the RD53 via the RQDX3
as normal.
Just a suggestion.
Everyone that has mentioned the RD53 has mentioned that
eventually (unfortunately sooner rather than later) the heads
end up sticking. There has been an extensive des
>Rod Smallwood wrote:
>On 06/06/2016 10:36, Jerome H. Fine wrote:
>Rod Smallwood wrote:
>On 06/06/2016 03:51, Jerome H. Fine wrote:
>Rod Smallwood wrote:
I have a box full of 8" floppies. BTW how many 8" floppies do you
think there were in an RT11 distribution?
>Rod Smallwood wrote:
On 06/06/2016 03:51, Jerome H. Fine wrote:
>Rod Smallwood wrote:
I have a box full of 8" floppies. BTW how many 8" floppies do you
think there were in an RT11 distribution?
I can't remember for sure, but I think there were eight SSDD (RX02)
>Rod Smallwood wrote:
[Snip]
The RX is clearly alive, The motor runs, belt tension is good and you
can hear the heads load.
I have a box full of 8" floppies. BTW how many 8" floppies do you
think there were in an RT11 distribution?
I can't remember for sure, but I think there were eight SSD
I expect that everyone on this list knows about most of the tools to
communicate.
Many also use these tools and understand how much easier communication has
become as a result.
https://uniteyouthdublin.files.wordpress.com/2015/01/here_comes_everybody_power_of_organizing_without_organizations.pdf
>Henk Gooijen wrote:
-Oorspronkelijk bericht- From: jwsmobile Sent: Friday, June
03, 2016 7:51 PM To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: PDP-11/94-E
On 6/3/2016 9:11 AM, Jerome H. Fine wrote:
>Rod Smallwood wrote:
>On 03/06/2016 16:43, Jerom
>Rod Smallwood wrote:
>On 03/06/2016 16:43, Jerome H. Fine wrote:
>Rod Smallwood wrote:
[Snip]
4. I have what I believed is a working 11/83 in my computer room
5 . I'm going to try my processor in there and yes I know about PMI
and the backplane.
Just a bit of informa
>Rod Smallwood wrote:
[Snip]
4. I have what I believed is a working 11/83 in my computer room
5 . I'm going to try my processor in there and yes I know about PMI
and the backplane.
Just a bit of information from what I seem to remember - I hope
the information is correct.
The M8190-BF bo
>On Saturday, May 21st, 2016 at 19:29:11 +0100, Rod Smallwood wrote:
Further to my posts this morning I have one last hurdle to jump.
1. I have a VAX with a TK70 attached and a TQK70 controller.
2. The tape drive works just fine.
3. Also on the VAX I have the correct tape (.TAP) ima
>Rod Smallwood wrote:>
On 20/05/2016 05:19, Jerome H. Fine wrote:
>Rod Smallwood wrote:
I'm not overly worried about it being on TK50 other than knowing
that was one of the distribution mediums.
So a quick rephrase of the question. I have an 11/83 system with an
RX50 and an
>Rod Smallwood wrote:
I'm not overly worried about it being on TK50 other than knowing that
was one of the distribution mediums.
So a quick rephrase of the question. I have an 11/83 system with an
RX50 and an RD54. How do I install RSTS on it?
Why do you want to use the PDP-11/83? Do you wa
>Warner Losh wrote:
I have it on floppies, but no easy way to read those floppies onto a
networked computer...
Warner
On Fri, May 13, 2016 at 3:31 AM, Pontus Pihlgren
wrote:
On Fri, May 13, 2016 at 07:40:08AM +0100, Robert Jarratt wrote:
I understand that DEC created a version of Wi
>Aaron Jackson wrote:
Hi Dave,
Yes it was Harrison Lighting. I'm hoping there will be a spare
compatible keyboard lying around in my department. I don't think £50 was
a bad price for a VT420, but it would have been much better if it
included the keyboard.
Dave Wade writes:
If it's Harriso
>Rod Smallwood wrote:
Hi
Does anybody know the jumper settings on a RD-53 on an 11/83
with an RQDX3 controller and an RX50
I will cover just the two most usual hardware configurations:
(a) BA23 box- 1st RD53 is DS3, 2nd RD53 is DS4 (a 6 button
front
>Mouse wrote:
Note that PDP-11 autoincrement and autodecrement exist only when
operating on pointers that are being indirected through, and even then
only when the pointers are in registers. C ++ and -- work fine on
things other than pointers, and on pointers when not indirecting
through them.
>Dave Wade wrote:
Fortran has an EQUIVALENCE statement, COBOL has redefines. Both allows the
subversion of types at the drop of a hat.
I can think of two examples which were not so much subversion of types
as they were a lack of language flexibility:
(a) Very early in my FORTRAN experience,
>Rod Smallwood wrote:
>On 28/04/2016 18:25, Evan Koblentz wrote:
We all owe a big "Thanks!" to Harry Sanders at S&H Computer Systems
and his
Board of Directors for making this release a reality for all vintage
computer folks! Also, the hobby owes huge thanks to Lyle Bickley for
tirelessly pur
>Lyle Bickley wrote:
On Thu, 28 Apr 2016 12:22:11 -0500 "Jay West" wrote:
--snip--
We all owe a big "Thanks!" to Harry Sanders at S&H Computer Systems
and his Board of Directors for making this release a reality for all
vintage computer folks! Also, the hobby owes huge thanks to Lyle
Bickle
>Paul Koning wrote:
On Apr 24, 2016, at 8:54 PM, Jerome H. Fine wrote:
Kyle Owen wrote:
On a related note, a former DEC field engineer gave me this key (and
keychain). He thought it was a PDP-8 key at first, but it's not the
standard XX2247. It says KBM1100...any id
>Ethan Dicks wrote:
Prior to that point, I had a VT103 with just 256 KB
of memory and a DSD 880/8 which had an 8 GB hard
drive / RX03 floppy drive in an external box. So
there were other 3rd party solutions as well.
8MB? But otherwise, also nice.
DSD (Data Systems Design) produced both t
>Kyle Owen wrote:
On a related note, a former DEC field engineer gave me this key (and
keychain). He thought it was a PDP-8 key at first, but it's not the
standard XX2247. It says KBM1100...any ideas what this might go to?
http://imgur.com/a/4v8Hq
I have followed this thread, but have not bee
>william degnan wrote:
Prior to the DEC Rainbow, Chrislin Industries was marketing the 11/23 with
vt103 as a desktop computer. This is a 3rd party vendor. Maybe they were
on to something...
Back around 1988, one of my customers had a few VT103
systems with just an RX02 for storage. A 3rd p
>Richard Cini wrote:
All —
To close this out, I want to report that with Malcolm’s and Mattis’ help, I was able to get RT-11 v4 and v5.03 running on the H-11 using the TU58 emulator.
Avoiding the gory details, the upshot is that there was a bus interrupt
issue relating to how the c
>Adrian Graham wrote:
On 11/03/2016 17:54, "Paul Koning" wrote:
They're in a sales office and I forgot about them when you visited otherwise
you could've taken them. I'm guessing at the versions but it'll probably be
VMS 5.5 and RSTS4 but I can check on Monday.
RSTS V4 (from 1973) is
>On Thursday, February 10th, 2016 at 12:51:30 - 0500, Richard Cini wrote:
Is there a listing somewhere of what versions of RT-11 work with which CPUs?
The Heath H11 uses the LSI-11 which I think is an 11/03 equivalent. Is there a
specific version (or maximum version) designed for this CPU?
I
>Paul Koning wrote:
On Mar 9, 2016, at 1:54 PM, Chuck Guzis wrote:
...
I suspect that the nuclear power industry is one place that you'll find the
oldest stuff, however, given the long regulatory approval process for change.
I remember a nuclear reactor (research, not power generation)
>jwsmobile wrote:
I see on the usual site, an 11/23 box with a couple of random boards,
one of which is an M7608 board. This is a Microvax memory board.
I wonder if one can build up a Microvax in that backplane, or if that
is not recommended. It would obviously be an 18 bit backplane. The
>Brian Walenz wrote:
How the heck do you copy an RX02 disk for use in simh?
I've been trying to transfer RX02 images between simh and a real PDP11
(that has only two RX02's, console, and ethernet). So far, I've only
attempted sending an RX02 image from the PDP to simh, but simh fails to
read i
>Brian Walenz wrote:
How the heck do you copy an RX02 disk for use in simh?
I've been trying to transfer RX02 images between simh and a real PDP11
(that has only two RX02's, console, and ethernet). So far, I've only
attempted sending an RX02 image from the PDP to simh, but simh fails to
read i
>Toby Thain wrote:
>On 2016-03-06 9:27 AM, Jerome H. Fine wrote:
I have a question about access to newsgroups. Which currently available
browser is able to access a newsgroups server? Currently, I am using
Netscape 7.2 under Windows 98SE. If I upgrade to Windows 10,
I probably won&
>On Saturday, March 5th, 2016 at 12:53:22 +, Robert Jarratt wrote:
My ISP appears to have stopped updating the newsgroups it hosts.
What news servers do people round here recommend?
I have a question about access to newsgroups. Which currently available
browser is able to access a newsgr
>On Saturday, February 27th, 2016 at 21:24:12 -0500, Mouse wrote:
[Snip]
And then there's the adjustment time. CRTs typically adjust to a
resolution change in a matter of a few vertical blanking intervals.
Flatscreens generally take multiple seconds, sometimes even a second or
so before they d
>Mattis Lind wrote:
2016-02-26 4:01 GMT+01:00 Chuck Guzis :
A few more (I have source):
Hockey
Fleet (sort of battleship game)
Football
Lunar Lander (of course!)
Blackjack
Lots and lots of printer art
--Chuck
When at Retrogathering in Västerås (Sweden) a month a ago we demonstrated
ASCII
>Ethan Dicks wrote:
I've been meaning to ask this question since I started cleaning up
terminals this year... what are some favorites? Some of the obvious
classics are:
Adventure
Zork (and anything else on a Zmachine)
Scott Adams Adventures
Wumpus
Anything in Dave Ahl's "101 BASIC Computing Ga
>On Monday, February 22nd, 2016 at 15:22:55 +0100, Pontus Pihlgren wrote:
On Mon, Feb 22, 2016 at 09:08:56AM -0500, Jerome H. Fine wrote:
A number of other ideas are as follows:
(a) During a multi-step sequence, stop the sequence when the
stack has more then a specified number
While the debugger in question will be for the PDP-11 set of instructions
executing under RT-11 (what else would I be asking about), the features
needed are the same for most other environments. I am looking for
helpful suggestions as to what has been found useful.
Obviously, single stepping thr
>Holm Tiffe wrote:
Jerome H. Fine wrote:
Holm Tiffe wrote:
Ben Sinclair wrote:
I was just looking up VAXstations the other day on eBay. I checked
again now for 4000's, and the prices seem crazy. Is there something
particularly special about them, or is it just t
>Holm Tiffe wrote:
Ben Sinclair wrote:
I was just looking up VAXstations the other day on eBay. I checked
again now for 4000's, and the prices seem crazy. Is there something
particularly special about them, or is it just the usual eBay
craziness?
..that are the smallest and fastest VAXen so
>On Sunday, February 21st, 2016 at 23:57:22 +1300, Mike Ross wrote:
Well I haven't figured out exactly what the problem was but I'm
embarrassed to report it was indeed serial comms finger trouble. I
could have sworn that VT220 was fine and the cable wired correctly...
but to cover all bases I tr
>Rich Alderson wrote:
From: Jerome H. Fine
Sent: Thursday, February 11, 2016 8:56 AM
Jon Elson wrote:
We paid somewhere between 200 and 250K for our first 11/780. We had
an RM05 and a TU77, and 256 KB of memory. It was a pretty basic
system, but ran rings around the campus 360/65 sys
Jacob Ritorto wrote:
On Mon, Feb 8, 2016 at 8:45 PM, Jerome H. Fine wrote:
Specifically, I always use a SEPARATE PC power supply for the hard disk drives.
Yep, this sounds like exactly where I went wrong. Two RD32s running
24/7. Took it only a couple months to burn out. In the next
>Jon Elson wrote:
>On 02/11/2016 08:56 AM, Mark Wickens wrote:
It's good to hear that the VAX was a cost-effective solution - there are
too many stories about how expensive DEC gear was, but I imagine they
primarily came after PCs started dropping in price.
We paid somewhere between 200 and
>Richard Cini wrote:
Jerome -- good point about the IOPAGE. Maybe I'll get an 8kw and 16kw board -- that gives me 28kw with the included 4kw. I have no specific software so I don't need to tinker with reducing IOPAGE.
Rich
On Feb 9, 2016, at 10:47 PM, Jerome H. Fine wrote:
>Rich Cini wrote:
Thanks guys. This is really helpful. I was getting confused between the M8044
and M7944 boards. Max memory for the LSI-11 is 32kw, right?
Correct, the maximum memory on a board is 32kw.
For an LSI-11 (aka PDP-11/03) without any MMU hardware,
the actual maximum memory that c
I top post only once or twice a year. This is the exception since my reply
does not explicitly address the question.
An internal built-in power supply is just the ordinary standard power
supply which provides power to the board on which the CPU is
located.
I have managed to avoid many of the pr
>Dave Mabry wrote:
Jay West wrote on 2/6/2016 11:51 AM:
I had already turned on emergency moderation mode to try and stem the
tide
of this escalating further. I had also already emailed a few people
off-list
about this, which is primarily how it should be handled. Those who
should
have been
>Mouse wrote:
I've finally had my fill of the general grumpiness and bluntly
worded interactions on this list.
Sorry to hear that.
What linimon@ said.
I fight against such things on other lists I am on, but some weeks I
also wonder why.
I just now noticed something.
I've noticed p
>paul_kon...@dell.com wrote:
I was looking back at the discussion on what Mentec actually owned, back when
it existed. The discussion on the list suggested that Mentec had a license but
did not actually own the IP. It seems an odd arrangement that doesn't say much
for the business skills of
>Ulrich Tagge wrote:Hi Glen,
[Snip]
List/change parameters in the Setup table
A - ANSI Video terminal (1) 0=No, 1=Yes = 1
B - Power up 0=Dialog, (1)=Automatic, 2=ODT, 3=24 = 1
C - Restart 0=Dialog, (1)=Automatic, 2=ODT, 3=24 = 1
D - Ignore battery
>m...@markesystems.com wrote:
Date: Thu, 28 Jan 2016 11:44:44 -0500
From: "Jerome H. Fine"
Subject: Can Windows 98SE run on an Intel I7 with SATA gard drives?
I run Windows 98SE on a 14 year old Pentium III. I have
replaced the power supply twice and all three hard disk drives.
>m...@markesystems.com wrote:
Date: Thu, 28 Jan 2016 11:44:44 -0500
From: "Jerome H. Fine"
Subject: Can Windows 98SE run on an Intel I7 with SATA gard drives?
I run Windows 98SE on a 14 year old Pentium III. I have
replaced the power supply twice and all three hard disk drives.
I run Windows 98SE on a 14 year old Pentium III. I have
replaced the power supply twice and all three hard disk drives.
It is a really good system to run the Ersatz-11 emulator for the
PDP-11, specifically RT-11. Since Ersatz-11 has built-in VT100
emulation, I don't need a separate terminal emu
I run Windows 98SE on a 14 year old Pentium III. I have
replaced the power supply twice and all three hard disk drives.
It is a really good system to run the Ersatz-11 emulator for the
PDP-11, specifically RT-11. Since Ersatz-11 has built-in VT100
emulation, I don't need a separate terminal emu
>Pete Lancashire wrote:
Have one of the UPS/FedEx packaging place go pick them up, pack, then ship.
On Mon, Jan 25, 2016 at 7:55 AM, Mark J. Blair wrote:
Per off-list email, it looks like the manuals are near the
Pasadena/Glendale border, which is over 2 hours from me... and there's a
V05.06 RT-11 DOC Set - Pickup Required in Los Angeles to Help Jay West
An old RT-11 fellow tried to sell his V05..06 RT-11 DOC set on eBay, but
no one bid. Jay West has expressed a desire to have the hard copy set of
manuals. Is there anyone in the Los Angeles area who would be willing to
picku
>tony duell wrote:
While the TU-58 tape will not have an RT-11 file
structure, you can at least read each raw block
and display the contents:
Actually I believe the VAX11/730 console tape is an
RT11 file system (for all there is no PDP11 involved).
On a VAX, there is an application (named E
>tony duell wrote:
Similarly, it could be a useful diagnostic tool to connect the real
TU58 hardware to a known-working (presumably slightly more modern)
machine to see if it's willing to work that way.
Yes. Does such a program exist? Something that will let me send commands
to the TU58 and se
I am not expecting a whole crowd to respond, but even one
individual would be helpful.
I also realize that very few individuals even know about the
RT-11 Symbolic Debugger, SD:, which is a pseudo device
driver what is usually activated by a BPT instruction within
a user's program - as opposed to
>et...@757.org wrote:
If a disk has all zeros written to it, as far as I know from what I've
read there is no hope of recovering the data. There were rumors that
the government could do it based on really fine detection of magnetic
levels or something -- but it was rumor. There are bounties ou
Sorry - I did it again and forgot to remove the junk in the subject line!
>Jerome H. Fine wrote:
>Jay Jaeger wrote:
On 12/29/2015 2:47 PM, Jay Jaeger wrote:
I have had several folks express the desire for them. Over the day or
few days (we have a gathering coming up tomorrow, and no
>Jay Jaeger wrote:
On 12/29/2015 2:47 PM, Jay Jaeger wrote:
I have had several folks express the desire for them. Over the day or
few days (we have a gathering coming up tomorrow, and not sure I will
get to it today, so it could be as late as next week), I will load them
up on my Google driv
>Robert Jarratt wrote:
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck
Guzis
Sent: 27 December 2015 20:34
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Looking for 3COM 3C905-TX Drivers
On 12/27/2015 01:57 AM, Robert Jarratt
>Jay West wrote:
Just wanted to say a very sincere Thank You to all the talented folks that
hang out here and call this place home, and also to wish you and yours a
Merry Christmas.
Best,
Jay West
jw...@classiccmp.org
It is a pleasure to wish you and everyone else a Merry Christmas.
And a s
Sorry for that BAD stuff in the Subject line - my e-mail provider
stuffs that in much of the time and I forget to remove it when I reply.
If anyone needs a clean copy, I can send it again!
Jerome Fine
>Tapley, Mark wrote:
On Dec 16, 2015, at 9:22 AM, Jerome H. Fine wrote:
Note that for many CPUs, adding values (a push) results in the
stack pointer becoming numerically smaller (unsigned of course).
Internally, the code would handle the actual arithmetic.
(Warning: assembly language n
I have been investigating the possibility of adding an enhanced
feature to a debug program. There does not seem to be anything
specific about the concept, so it should be applicable to every
current CPU in addition to most old CPUs.
The current syntax for many debuggers uses the letter "S" along
>William Donzelli wrote:
Keep it together. RL drives are pigs to ship and rather common.
Basically, they are hard to sell on their own.
Also, be aware that the competition is not someone else selling
another PDP-11 system, but a PC running Windows which
runs the same software UNDER Ersatz-11
>On Friday, December 4th, 2015 at 11:41 A.M. GMT (6:41 A.M. EST) Rod
Smallwood wrote:
Hello All
Well I managed to find some suitable rubber tubing and
glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the board
flashed once
>Paul Koning wrote:
The reason for the interleaving on DECtape is the start/stop time. To run
non-interleaved at high speed you have to leave the tape running (no "stop"
commands) and you have to issue the next command quickly. RT-11 could do that; DOS could
not.
When I attempted to evalu
>Johnny Billquist wrote:
>On 2015-11-27 19:34, Mark J. Blair wrote:
>On Nov 26, 2015, at 04:29, Jerome H. Fine
wrote:
After that worked successfully, I became disappointed
that I had to deface the floppy media with the extra holes. The
simple solution was to use a DPDT switch and
>Mouse wrote:
Love that term, "bounce buffer" (I wrote a whole package to support
them in a packet switch I did) - I'm officially adopting it, right
now! :-)
Hey - anything that anyone writes is automatically copyrighted.
I realize you...may have been less than entirely serious. But what yo
>Noel Chiappa wrote:
> From: Jerome H. Fine
> both DEC and DSD needed a bounce buffer managed by software
Love that term, "bounce buffer" (I wrote a whole package to support them in a
packet switch I did) - I'm officially adopting it, right now! :-)
No
>Jerry Weiss wrote:
On Nov 25, 2015, at 10:41 PM, Jerome H. Fine wrote:
For example, the DSD 880/30 (from Data Systems Design of course) emulates
3 RL02 disk drives using a single internal (non-removable) hard drive. The box
also holds a single RX03 floppy disk drive (8" floppy di
>tony duell wrote:
The RH11 do DMA, just like all other disk controllers I know of.
IIRC, the RX11/RX211 (Unibus) and RXV11/RXV21 (Qbus) don't do DMA.
The RX11/RXV11 don't do DMA, but the RX211 and RXV21 do, I think
I can confirm that the RXV11 for the Qbus does not and I am also fai
>Johnny Billquist wrote:
>On 2015-11-24 16:35, Al Kossow wrote:
>On 11/23/15 11:46 PM, Johnny Billquist wrote:
Your native interface have the additional problem that in addition to
requiring people to write their own device driver for any OS usage, it
will be rather difficult to get booting
Upon reading all the discussion over the past three days, I am
extremely interested in the overall tone of the discourse. While
there has been rather passionate argument at times, there does
not seem to be any of the caustic comments that we have seen
on occasion in the past. Congratulations EV
By the way, a draft of the post which follows was made
available to Johnny over 12 hours ago. Some clarifications
were made, but none of the facts that I mention have changed
from my point of view.
>On November 15th, 2015 at 8:27 P.M. EST Johnny Billquist wrote:
>On 2015-11-15 01:56, Mark J. B
>rod wrote:
Well thats part of the picture but not I think all of it.
If you take what Deep Throat told the Washington Post reporter to do
and how Sherlock Holmes said you could solve most cases put them
together and there is one
one possible answer.
>On 15/11/15 13:09, Johnny Billquist w
Sorry I forgot to remove the SPAM KEY notice thsat my e-mail places
there
>Paul Koning wrote:
On Nov 13, 2015, at 5:45 PM, Josh Dersch wrote:
Hey all --
Now that I have my PDP-11/05 running nicely, I'm curious what others are
running on small systems like this -- until this point I've
>Paul Koning wrote:
On Nov 13, 2015, at 5:45 PM, Josh Dersch wrote:
Hey all --
Now that I have my PDP-11/05 running nicely, I'm curious what others are
running on small systems like this -- until this point I've only played
with larger (i.e. at least 28KW memory) systems. I have only 8KW of
I sent the following post to Al on November 10th at 9:22 P.M. EST.
Al did not reply or I did not see his reply, so I presume that he
is just ignoring my request although Al did ask Jay Jaeger to respond.
Al, if you have changed your mind, please reply with the name of the
incoming directory as a
1 - 100 of 150 matches
Mail list logo
