On Mon, Jul 22, 2024 at 06:53:19PM -0600, Eric Smith via cctalk wrote:
> On Sat, Jul 20, 2024 at 8:08?PM Steve Lewis via cctalk <
> cctalk@classiccmp.org> wrote:
>
> > What I meant was that in the title of the book they use "digital computer"
> > and I wonder if there was ever a book describing a
On Sat, Jul 13, 2024 at 08:43:59PM -0400, Patrick Finnegan via cctalk wrote:
> I'm definitely a bit sad that Purdue's former CDC 6500 (priming that's what
> they meant) will probably go to some unknown high dollar bidder.
>
> Patrick Finnegan
Same here. I'm pretty sure I ran some code on that ma
> But the required are often dependent on variables that are not> known at
> compile time, for example load/store delays, or branches> taken/not taken.
> Run time interlocks deal with the actual conflicts> as they occur, while
> compiler or programmer conflict avoidance> has to use the worst ca
I suppose this makes a good point for me to jump in with my 20
milli-dollarsworth. To establish context, I'm in the middle to upper part of
the age rangeat 62. My first contact with a computer was my cousin's Altair
around '76or '77. The first exposure to information about computing were a
On Wed, Mar 08, 2023 at 05:24:40AM -0600, Steve Lewis via cctalk wrote:
> We're making final touches on a short history-video we've been making about
> home computers (my daughter, in middle school, has been helping).
>
> If anyone has time/interest to do a review, the draft listing is here:
> htt
This evening begins a series of events celebrating the
75th anniversary of the unveiling of the ENIAC at the
University of Pennsylvania. On the 11th and 18th, the
Philadelphia Venture Cafe will be hosting virtual round
tables with a number of us who have some connection to
the ENIAC and Philadelph
On Friday, January 29, 2021, 5:44:05 PM EST, Noel Chiappa via cctalk
wrote:
> This seller:
>
> https://www.ebay.com/itm/303862645513
>
> is _completely_ insane! ~$2400 for an RL11 board?
But you get a discount if you order 2... :)
BLS
On Friday, January 29, 2021, 10:19:54 AM EST, Liam Proven via cctalk
wrote:
>On Fri, 29 Jan 2021 at 13:11, Peter Corlett via cctalk
>wrote:
>>
>> It is *also* the use of symbols. Firstly, some people are just symbol-blind
>> and prefer stuff spelled out in words. It's just how brains are wired
On Monday, October 19, 2020, 5:34:03 PM EDT, Chris Zach via cctalk
wrote:
> Maybe. If so it's a seriously overpowered 11/84 with only a pair of
> RL02's. Might also be an 11/24.
>
> I'll check into it. NJ isn't too far away although I don't think it will
> fit easily in a Porsche 928. So I'd
On Saturday, May 9, 2020, 11:42:11 AM EDT, Tony Duell via cctalk
wrote:
>On Sat, May 9, 2020 at 4:23 PM Noel Chiappa via cctalk
>wrote:
>>
>> > From: Dwight Kelvey
>>
>> > There was a fellow that made a relay logic that could play tic tac toe
There's a guy who brings the stepper/relay TTT mac
On this, the 74th anniversary of the unveiling of
the ENIAC, I've decided to post a couple of things
I've been working on. The first is the 3D model
of the ENIAC mentioned before. It's designed
using brlcad, from the Ballistics Research Lab.
It just seemed too appropriate to model it using
the to
On Tue, 6/11/19, dwight via cctalk wrote:
> When I needed to create a PAL from a schematic, I first made
> a schematic of what the PAL was suppose to do, using the
> same basic model of logic that the PAL provided. Once I was
> done, I took the PAL map from the TI book and made red dots
> on each
On Thu, 4/18/19, dwight via cctalk wrote:
> My understanding was that the mercury delay lines
> needed periodic repairs ( not sure what the cause
> was but mercury does dissolve into many metals ).
> If I were going to make a delay line memory, I'd go with
> the magnetostrictive. These are practic
On Thu, 2/28/19, Fritz Mueller via cctalk wrote:
> I've just been tripped up for a little
> over the fact that the C compiler barfs if there is
> whitespace/comentary before the first #include; the
>
> I found this curious. Anybody
> know what the story is there?
My recollection is that it's doc
Several years ago when I restored my 8/M, I whipped up
a quick and dirty program that uses TCL/Tk to make a
little graphical interface for selecting, reading, and punching
paper tape images. When running, it looks something
like this:
https://www.cs.drexel.edu/~bls96/museum/asrscreen.jpg
You nee
On Tue, 11/6/18, Zane Healy via cctalk wrote:
> For those not in the know, orange binders for RT-11 should mean v5.x. An
> probably v4.x for
> RSX11M. Definitely a great pile of documentation for someone that is close
> enough!
Isn't RT-11 V4 orange? I'll have to check when I get home, but
I
On Tue, 10/23/18, Paul Berger via cctalk wrote:
> This is my issue with a lot of Linux distros they seem to try to hard to
> look and work like mac or like windows while I would rather have them
> look and work like the xwindows I knew and loved. One of my biggest
> aggravations is cut and pas
On Wed, 9/5/18, Al Kossow via cctalk wrote:
> Martin and I thank you!
Al and Martin,
I've run the standard though our fancy copier
at the office and had it scan at 400dpi, bilevel
directly to PDF. A quick look with xpdf seems
to be a pretty decent scan. I've put it up here:
http://cs.drexel.ed
On Wed, 9/5/18, Ethan Dicks via cctalk wrote:
> The part that puzzles me is the collection of object files and
> binaries in the directory above that. 'file' tells me that they are
> "m68k COFF" files. From what I've read so far, COFF binaries are from
> System V Release 2-4. What I can't recon
On Wed, 9/5/18, Martin Hepperle via cctalk wrote:
> In the 1990s a computer terminal standard "AlphaWindows" was proposed by the
> Display Industry Association (DIA). Sort of X-Windows for the poor.
>
> Does anyone have a manual with escape sequences for one of the terminals
> mentioned? Or other
On Tue, 4/17/18, Eric Smith via cctalk wrote:
> On Mon, Apr 16, 2018 at 7:29 PM, Chuck Guzis via cctalk
> wrote:
>> Disassembly is never lots of fun,
>
> Some of us might disagree.
> But then, some of us might be masochists.
I was just thinking the same thing. This whole discussion
has taken m
On Fri, 12/15/17, Ethan Dicks via cctalk wrote:
> On Fri, Dec 15, 2017 at 1:49 PM, systems_glitch
> wrote:
> > It's on my list of things to do -- you can run external clock into DL11 and
> > DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
> > so somewhere between 3840
On Wed, 11/15/17, Jon Elson via cctalk wrote:
> PDP-5 and LINC certainly fit that requirement.
Funny the LINC should come up tonight. Earlier this evening
I went to a talk given by Mary Allen Wilkes who was the
developer of the system software for the LINC. She had one
in her parents' house a
On Fri, 11/10/17, Dave Wade via cctalk wrote:
> https://www.theguardian.com/global/2017/nov/08/geoff-tootill-obituary
This raises the question, is there anyone still alive from those
first-generation projects? I had guessed that at age 101, Harry
Husky was the last one still alive when he passe
On Fri, 10/20/17, Al Kossow via cctalk wrote:
> I've noticed since I've gotten into this again that there is a lot of
> closed-source thinking
It's pretty disturbing when you think about how the amateur
radio world developed and that it was given legal status
in part to encourage experimentatio
On Tue, 8/8/17, Rod Smallwood via cctalk wrote:
> Well not surprisingly it didn't. I keyed in the bootstrap and
>
> So next move will be to try and see if we can read / write the registers
> on the controller card.
>
> First find out what address they are at.
Unlike the 11s, the devi
On Fri, 4/21/17, Don North via cctalk wrote:
> On 4/21/2017 4:25 PM, Brian L. Stuart via cctalk wrote:
>> I've seen suggestion that TU-58s are emulated in simh on
>> PDP-11s. However, I'm not seeing it in a show dev and my
>> google-fu is failing me to find
I've seen suggestion that TU-58s are emulated in simh on
PDP-11s. However, I'm not seeing it in a show dev and my
google-fu is failing me to find any info on how to use it. Any
pointers on how to boot from a TU-58 image?
TIA,
BLS
On Sat, 3/11/17, Douglas Taylor via cctalk wrote:
> One of the things that I tried
> was running kermit inside the xterm window, I was able to
> connect to the Vax but was unable to test the graphics portion.
There are two things that come to mind as possibilities. First, if
xterm isn't gettin
29 matches
Mail list logo
