On Sun, Jan 02, 2022 at 06:59:47PM -0700, ben via cctalk wrote:
> On 2022-01-02 6:28 p.m., Zane Healy via cctalk wrote:
[...]
>> On that note a Raspberry Pi 2b running SIMH/VAX is about 1.6 VUPS.
> But can the Pi handle a gazillion students all time sharing at once @
> 2400? How long was the VAX ti
On Tue, Jan 18, 2022 at 04:47:36PM -0700, Grant Taylor via cctalk wrote:
> On 1/18/22 2:21 PM, Peter Coghlan via cctalk wrote:
>> https://www.thisiswhyimbroke.com/floppy-disk-table/
> I like it!
The ratios are wrong: it's about twice as thick as it ought to be. It's
apparently been designed by som
On Mon, Jan 31, 2022 at 02:21:19PM -0800, Fred Cisin via cctalk wrote:
[...]
> That limit lasted until MS-DOS 3.31 / PC-DOS 4.00 After that, the limit
> was bumped up to 2GB. (Probably would have been 4GB if they had used an
> UNSIGNED 32 bit number, and given up the option of having negative file
On Mon, Jan 31, 2022 at 07:51:28PM -0500, Paul Koning via cctalk wrote:
[...]
> Yes, RT-11 is a somewhat unusual file system in that it doesn't just
> support contiguous files -- it supports ONLY contiguous files. That makes
> for a very small and very fast file system.
> The only other example I
On Thu, Apr 21, 2022 at 07:12:07PM -0400, Sean Conner via cctalk wrote:
[...]
> Agree here. I loved the 68K and have fond memories of writing programs in
> it. But while the x86 has been Frankensteined into 64 bits, I don't think
> I can see the 68K ever being a 64-bit architecture. I don't think t
On Wed, May 11, 2022 at 07:14:23AM -0400, Bill Degnan via cctalk wrote:
> I get these every so often despite my gmail account. I believe when you're
> on a thread that has an email address within in it that gets flagged, all
> associated emails are also.flagged, based on how the reply all setting i
On Wed, Aug 10, 2022 at 11:53:34PM -0600, Grant Taylor via cctalk wrote:
> Does anyone know if it's possible, or -- better -- have experience using a
> cell phone as a dial up modem?
I did it routinely in the late 1990s and early 2000s. I stopped once I got a
GPRS-capable handset, since that was m
On Sun, Sep 25, 2022 at 10:39:46AM -0500, Adrian Stoness via cctalk wrote:
> On Sun, Sep 25, 2022 at 10:26 AM Tony Duell via cctalk <
> cctalk@classiccmp.org> wrote:
>> Does anyone have a Philips P2000C CP/M luggable with the carrying strap?
>> I will be restoring such a machine in the near-ish fut
On Fri, Oct 21, 2022 at 12:15:02PM +1100, Doug Jackson via cctalk wrote:
[...]
> Yet another American seler who doesn't understand how simple overseas
> shipping is.
As far as I can tell, the price to ship anything overseas from the USA is
twice the value of the item, plus fifty bucks, plus ten bu
On Sat, Nov 12, 2022 at 10:28:09AM +, Tony Duell via cctalk wrote:
[...]
> The other day I saw a product with a flashing LED, the flash rate was set
> with a knob. Yes, a microcontroller with a pot connected to an analogue
> input and LED hung off an output port. This is the sort of thing I'd d
On Wed, Nov 30, 2022 at 08:10:27PM -0500, Paul Koning via cctalk wrote:
[...]
> 5V tolerant does not mean 5V compatible. I have right now some 5V devices
> I want to control, and it's not exactly clear whether a 3.3V device will
> drive outputs high enough to reliably make 5V devices see them as hi
On Tue, Jan 17, 2023 at 05:42:55AM +, Chris via cctalk wrote:
[...]
> The only answer that anyone can provide is redundancy. Keep 2 or 3 copies
> of everything on seperate external drives. Every 3 to 5 years buy new
> drives and transfer the data to them. Or just run checkdisk twice a year
> an
On Tue, Jan 17, 2023 at 10:16:18AM +, Peter Coghlan via cctalk wrote:
[...]
> How about translating code from Z80 which has several registers to 6502
> with rather fewer? That would seem to need some more intelligent thinking
> on how to simulate the unavailable registers without causing additi
On Fri, Jan 20, 2023 at 07:55:50PM -0800, geneb via cctalk wrote:
[...]
> I'm surprised nobody has mentioned the AppleSauce yet. Yes, it requires a
> Mac. Yes, they're currently out of stock, but Yes, it's absolutely the
> best solution out there for disk imaging. https://applesaucefdc.com/
It's c
On Tue, Feb 07, 2023 at 12:27:33PM +0100, Cedric Amand via cctalk wrote:
> I've looked at the problem a bit, there are two issues to solve at first
> glance ; (A) there doesn't seem to be a telnet server library in python,
> so whatever you do you have to write your own telnet server, which is a
>
On Tue, Mar 14, 2023 at 09:16:02PM +, Jonathan Chapman via cctalk wrote:
[...]
> It's nice to support the designers in some capacity, but buying knockoffs
> fuels the ecosystem that creates knockoffs. With our stuff, it's never
> been that a single knockoff operation eats our lunch, it's that t
On Wed, May 17, 2023 at 12:02:05PM -0500, Mike Katz via cctalk wrote:
> That is because Amiga uses GCR recording rather then FM or MFM.
Nope. You may have gotten confused with the Commodore 64 drives, which
were very Special, or perhaps early Apple gear.
The Amiga's disk controller supports both
On Thu, May 25, 2023 at 12:52:39PM +0100, Tony Duell via cctalk wrote:
[...]
> USB interfacing is hard, but SD cards are a lot simpler. So use a card
> reader thing to transfer the files to an SD card and design an
> interface for that to ISA bus.
No need even to design anything or faff around cop
On Fri, Mar 31, 2017 at 12:44:28PM -0700, W2HX via cctalk wrote:
[...]
> The question is, whether you think I would be better off using PCI wifi card
> or a USB-wifi adapter. I should mention the USB on this instrument is USB
> 2.0, the spec for which claims up to 480 Mbps. Anyone have an opinion w
On Fri, May 19, 2017 at 12:25:44PM +0200, Liam Proven via cctalk wrote:
> Bill Gunshannon via cctalk wrote:
>> The plate on the back of my 11/93 says 345 Watts. That's about a fifth what
>> your
>> wifes hair dryer draws. Or slightly more than 3 100 watt light bulbs
> Jesus wept.
> Are you ce
On Fri, May 19, 2017 at 11:39:27AM +, Bill Gunshannon via cctalk wrote:
[...]
> But, seriously, just how many households do you think have made the move to
> LED lighting? The amount of energy wasted in the average house, especially
> those with wives and children (your wife never forget to tur
On Sat, May 20, 2017 at 02:01:12AM +, Bill Gunshannon via cctalk wrote:
[...]
> And if you break one you have to call HAZMAT. You did realize that, didn't
> you? They contain mercury and any breakage requires professional remediation
> by law!!
That's an "alternative fact". The EPA gives some
On Thu, May 25, 2017 at 10:33:41AM -0700, Fred Cisin via cctalk wrote:
[...]
> Fortuitously, the B&W film was sharp enough to be able to make out the dot
> mask of the CRT! That made possible the development of a new technique -
> computer recognition of which pixels were the original RGB dots of t
On Tue, Jun 06, 2017 at 08:32:14PM -0700, Michael Hunter via cctalk wrote:
[]
> Anyway, the .bas file is not plaintext, but I can see strings in it. Here
> are the first few bytes:
That text looks like length-prefixed records:
: f900
0002: 1b00 3aaf e84f 6e65 2046 7275 636b
On Wed, Jun 14, 2017 at 07:42:44AM +0100, Rod Smallwood via cctalk wrote:
[...]
> However with modern technology there has to be a multi-pass printer that can
> print on perspex (plexiglass) and closely simulate silk screening
This is perhaps an obvious question, but have you asked a professional
On Tue, Jul 25, 2017 at 08:33:16AM -0700, geneb via cctalk wrote:
[...]
> For example, if you sent classiccmp.org an email with your "from" header
> tweaked to be from ge...@deltasoft.com, the mail server will reject it
> because your mail server isn't an authorized sender for the deltasoft.com
> d
On Tue, Jul 25, 2017 at 01:21:36PM -0700, geneb via cctalk wrote:
[...]
> Also, deltasoft.com DOES have an SPF record.
So it does, although my lookup earlier got a null result for some reason. The
joy of DNS resolution.
On Wed, Aug 30, 2017 at 09:21:40AM +0200, Philipp Pap via cctalk wrote:
[...]
> I think that I’m responsible for the dead, as the plotter stood in an attic
> for 20 years, meanwhile power was raised from 220 to 230v (+-10%) in Europe.
If it helps, the failure probably wasn't caused by the voltage
On Fri, Sep 08, 2017 at 12:46:02PM -0700, Chuck Guzis via cctalk wrote:
[...]
> This is particularly true if you use a whole-track reader than can read
> tracks without regard to index.
> I don't know about Amiga, however.
The Amiga's native disk format assumes whole-track reads and writes anyway
On Thu, Sep 28, 2017 at 05:36:40PM -0700, Chuck Guzis via cctalk wrote:
[...]
> What I find perplexing is the acronym "SATA" for "Serial ATA". The name would
> imply that a drive can be connected to a 5170, but I'm not aware of any SATA
> adapters for the 5170 PC/AT.
SATA has a different electrica
On Fri, Sep 29, 2017 at 01:08:24PM -0700, Fred Cisin via cctalk wrote:
>> On 09/29/2017 11:20 AM, Jon Elson via cctalk wrote:
[...]
>> Older BIOS firmware provided no means for the user to define the geometry of
>> a connected drive - just a list of predefined types, and those often maxed
>> out at
On Wed, Nov 15, 2017 at 09:44:24AM -0800, Fred Cisin via cctalk wrote:
[...]
> 3.5" MFM "High Density" (sometimes called "1.44M", due to the most common
> formsat being 1.41 Mebibytes, or 1.44 of a unit of 1000*1024 bytes), were
> 300 RPM at 500,000 bits per second. (1M unformatted per side)
Anot
On Tue, Nov 21, 2017 at 08:15:00PM +0100, Liam Proven via cctalk wrote:
[...]
> A file-based virus could escape _if_ the VM had access to the host
> filesystem. But mine don't, partly because it's moderately hard, partly
> because it takes a _ton_ of RAM in DOS terms.
Not really: QEMU can be confi
On Sun, Jun 11, 2023 at 09:21:52AM -0600, ben via cctalk wrote:
[...]
> I would of thought the AMIGA would have a say here, as it reads a disk
> track as just a bunch of flux transitions.
The Amiga has a choice of two fixed clock rates, both of which happen to
correspond with common DD disk format
On Fri, Aug 04, 2023 at 08:51:31AM -0500, John Herron via cctalk wrote:
[...]
> That price is interesting. Does that imply the value has gone down after
> some skyrocketed close to 1 million? One still has to make the decision of
> a owning a house or an apple 1.
Well, both of them are treated as
On Fri, Sep 01, 2023 at 04:32:57PM -0600, ben via cctalk wrote:
[...]
> I think that way has been for a while. Having a hard time finding a 68B50
> on ebay. All the modern serial devices (I can buy) seem to be serial
> interfaced. Sigh.
I see the 68B50 on AliExpress, and they're probably even genu
On Sun, Sep 10, 2023 at 05:44:59PM +0100, Liam Proven via cctalk wrote:
[...]
> No idea of the CPU performance. 4MHz Z80A but whether there was any
> contention or anything I have no idea. I believe one of the
> interesting bits of the design is that there's no ROM at all. They
> came with a dedica
On Fri, Apr 19, 2024 at 09:34:42PM -0700, Chuck Guzis via cctalk wrote:
> On 4/19/24 19:39, ben via cctalk wrote:
[...]
>> Now is a good time to stock up for any z80 projects or repair, while they
>> are $10 or less on epay.
Unless people start panic-buying them, Z80 chips are likely to languish i
On Mon, Apr 22, 2024 at 01:06:42AM +0100, Peter Coghlan via cctalk wrote:
[...]
> This was implemented by a humble 6502 running at (mostly) 2MHz, with one 8
> bit arithmetic register, two 8 bit index registers, one 8 bit stack
> pointer, a 16 bit program counter and a few flag bits.
> I would have
On Fri, May 03, 2024 at 02:51:06AM +, Just Kant via cctalk wrote:
> BASICs available at bootup were nice, but really were only useful with 8
> bit micros. IBM ROM BASIC was hobbled until you ran BASICA from disk. And
> if you had a floppy it only made sense to buy a cheap compiler (Quick
> Basi
On Mon, May 20, 2024 at 11:13:38AM -0500, CAREY SCHUG via cctalk wrote:
[...]
> many games and entry pcs with old style tv analog format, don't interlace,
> and tube TVs nearly all (except maybe a few late model high end ones?) are
> fine with that, but I seem to recall that most or all digital/fla
On Mon, May 20, 2024 at 12:06:13PM -0500, CAREY SCHUG via cctalk wrote:
[...]
> so, just curious. how do digital TVs (and monitors) work? I presume the
> dots are a rectangle, not sloping down to the right, no half a line at the
> top and bottom. Do they just assume the brain can't tell that (for t
On Mon, Jun 10, 2024 at 05:18:56PM +0100, Joshua Rice via cctalk wrote:
[...]
> DEC came across another issue with the PDP-11 vs the VAX. Although the
> pipelined architecture of the VAX was much faster than the PDP-11, the
> actual time for a single instruction cycle was much increased, which led
On Mon, Jul 01, 2024 at 09:06:47PM -0400, cz via cctalk wrote:
> Actually I am travelling to France in a few weeks and there is an RM80
> platter HDA I could pick up. What is the complexity of just checking it as
> baggage? Do I have to declare it at Customs if the value is like zilch?
I don't kno
On Mon, Jul 15, 2024 at 05:51:50PM +0100, Liam Proven via cctalk wrote:
> This seems to be a Belgian computer that draws a total blank on Google.
> https://www.facebook.com/groups/vintagecomputerclub/posts/8562290167137607/
> Anyone ever heard of it?
Unfortunately, that link is also a total blank
On Mon, Jul 15, 2024 at 09:56:14PM +0100, Joshua Rice via cctalk wrote:
> https://imgur.com/a/GjiB44R
> For all of those not in the group, images above.
The back connectors are a couple of BNC connectors marked "VID [obscured]"
and "VID1" so we can assume video, and a DB-25 with three wires connec
On Wed, Jul 17, 2024 at 01:33:56AM -0500, CAREY SCHUG via cctalk wrote:
> is anybody 3-d printing things that are often lost, or additional ones
> needed, like disk caddies for sun and silicon graphics systems?
Yes, and they often publish them for others to use for free on e.g. their
GitHub reposi
On Thu, Aug 15, 2024 at 01:41:20PM -0600, ben via cctalk wrote:
[...]
> I don't know about the VAX,but my gripe is the x86 and the 68000 don't
> automaticaly promote smaller data types to larger ones. What little
> programming I have done was in C never cared about that detail. Now I can
> see way
On Sun, Aug 04, 2024 at 08:47:44PM -0700, Fred Cisin via cctalk wrote:
> On Sat, 3 Aug 2024, Liam Proven via cctalk wrote:
[...]
>> Not my country, not my continent. I've lived in Africa, 3 different
>> countries in Europe, spent a lot of time and speak the languages of 4
>> more, but America is fa
On Sat, Aug 10, 2024 at 12:28:23AM -0500, Steve Lewis via cctalk wrote:
[...]
> I don't ever recall seeing 86-DOS on shelves, or ever really hearing about
> it. But CP/M remained fairly popular to mid 1980s (I just mean I knew
> various friends who daily used CP/M then). A couple issues with CP/M:
On Fri, Aug 16, 2024 at 11:42:01PM -0600, ben via cctalk wrote:
> On 2024-08-16 12:11 p.m., Peter Corlett via cctalk wrote:
[...]
>> From what I can tell of a casual peruse of the documentation of CP/M-68K
>> and CP/M-86, they support the full address space of 4GiB and 1MiB
>&g
On Fri, Aug 16, 2024 at 04:00:40PM -0600, ben via cctalk wrote:
> On 2024-08-16 8:56 a.m., Peter Corlett via cctalk wrote:
[...]
>> This makes them a perfect match for a brain-dead language. But what does
>> it even *mean* to "automaticaly promote smaller data types to large
On Fri, Nov 23, 2018 at 12:12:32PM +0100, Liam Proven via cctalk wrote:
> On Fri, 23 Nov 2018 at 01:55, Guy Dunphy via cctalk
> wrote:
[...]
>> Also I have it configured to dust-bin any incomimg mail containing UTF-8
>> chars in the Subject header. Avoids a lot of time-wasting.
> That's English-la
On Sun, Nov 25, 2018 at 07:59:13PM -0800, Fred Cisin via cctalk wrote:
[...]
> Alas, "current" computers use 8, 16, 32. They totally fail to understand the
> intrinsic benefits of 9, 12, 18, 24, and 36 bits.
Oh go on then, I'm curious. What are the benefits? Is it just that there are
useful prime
On Sun, Nov 25, 2018 at 03:06:29PM -0800, Chuck Guzis via cctalk wrote:
[...]
> I routinely get Turkish and Greek spam in my mailbox--and I've gotten
> Cyrillic-alphabet stuff as well.
I had started to get slightly paranoid about the fact that there was a sudden
increase in Dutch-language spam and
On Tue, Nov 27, 2018 at 01:21:52AM +1100, Guy Dunphy via cctalk wrote:
[...]
> Oh yes, tell me about the html 'there is no such thing as hard formatting and
> you can't have any even when you want it' concept. Thank you Tim Berners Lee.
Sure you can! Pick one of:
a) If you're not using HTML featu
On Wed, Dec 19, 2018 at 12:03:56AM -0500, Bill Degnan via cctalk wrote:
> I repaired a Spectrometer for Morgan University in Baltimore that had a
> vintage computer at its heart, used for training purposes and perfectly good.
> The computer just needed some TLC to get it back up and running. I thin
On Wed, Dec 19, 2018 at 11:31:47AM +0100, Liam Proven via cctalk wrote:
[...]
> For millennial-age geeks, pre-32-bit computers are antiques. They _might_
> just barely remember back to Win9x. So for them, a DOS machine is a voyage of
> discovery into some of the more arcane pages of history. The id
On Wed, Dec 19, 2018 at 12:50:21PM +0100, Christian Corti via cctalk wrote:
> On Wed, 19 Dec 2018, Peter Corlett wrote:
>> For what it's worth, PCI-to-ISA adaptors exist. Virtualisation will let you
> Really? Show me one that is 1) in current production, 2) offers the full ISA
> bus (not just some
On Sat, Jan 05, 2019 at 02:02:35AM -0500, Jeffrey S. Worley via cctalk wrote:
> [...] So here's the question. Is maximum fsb on standard, non-optical bus
> still limited to a maximum of a couple of hundred megahertz, or did something
> happen in the last decade or two that changed things dramatical
On Sun, Jan 06, 2019 at 02:54:08PM -0700, ben via cctalk wrote:
> On 1/6/2019 12:24 PM, allison via cctalk wrote:
>> The small beauty of being there... FYI back then (1972) a 7400 was about
>> 25 cents and 7483 adder was maybe $1.25. Least that's what I paid.
> Checks my favorite supplier.
> $1.
On Fri, Jan 25, 2019 at 08:58:46PM -0700, Warner Losh via cctalk wrote:
> In Japanese, but interesting.
> http://www.geocities.jp/kugimoto0715/index.html
> Talks about interfacing old school high current 5V interfaces like FDD or
> SASI/SCSI into into lower voltage lower current RPI pins.
Converti
On Tue, Jan 29, 2019 at 11:53:59PM +0100, Christian Groessler via cctalk wrote:
[...]
> But I cannot find gcc 1.34. ftp.gnu.org has gcc-1.30.atari (where the
> sequence doesn't exist), and gcc-1.35 (where it's "#if 0"ed).
> Does anyone know where to find the source code of gcc 1.34?
The canonical
On Mon, Jun 10, 2019 at 01:57:34PM +0200, Liam Proven via cctalk wrote:
[...]
> I just wish a few more companies thought like Planet Computers and tried to
> make devices for rich niches, rather than the cheap mass market...
> https://planetcom.squarespace.com/
So long as said companies don't just
On Mon, Jun 10, 2019 at 01:58:53PM +0200, Liam Proven via cctalk wrote:
[...]
> Agreed again. My old Mac mini had a power LED. It pulsed softly when asleep.
> The iMac that has replaced it has nothing. I can't tell if it is on,
> off, asleep or what.
> The cost saving of this change must be too sma
On Fri, Jul 05, 2019 at 03:05:32PM -0600, Grant Taylor via cctalk wrote:
[...]
> How many different protocols / methods can we collectively come up with for
> how email can be transferred?
I use rsync (over ssh) for transferring between a couple of my mail servers. It
is perhaps one of my favourit
On Sat, Jul 06, 2019 at 12:54:28PM +0300, Bill Degnan via cctech wrote:
> Hi...I am arriving at Gatwick Airport this weds evening1045pm and I have a
> 17 hour layover. I'd like to visit the national computer museum at
> bletchley park about an hour north. [...]
It's actually *two* hours north; th
On Thu, Aug 22, 2019 at 10:31:46AM -0700, Steven Stengel via cctalk wrote:
> How do I ship a 50 pound computer from Europe to the United States? Who has
> good rates?
"Europe" contains so many diverse states and cultures that you're going to have
to be a bit more precise about where in the 4 milli
On Thu, Aug 22, 2019 at 06:30:10PM +, Henk Gooijen via cctalk wrote:
> A few weeks ago I shipped approx 39 kilos from The Netherlands to USA (HP
> A990). At least in Holland, most shippers do not accept such heavy stuff (max
> 30 kilos).
Yeah, well, "dat kan niet" *is* the Dutch motto. I'm sur
On Mon, Mar 06, 2017 at 02:11:45PM -0500, Noel Chiappa via cctalk wrote:
[...]
> I've been looking for LED replacements, but I haven't seen them; I'd have
> thought that that would be a pretty popular item, but I haven't seen them in
> any local stores. Are they only available as an online option?
On Fri, Mar 10, 2017 at 05:14:55PM +, Adrian Graham via cctalk wrote:
> On 09/03/2017 13:20, "Liam Proven via cctalk" wrote:
[...]
>> My friend Roger took a picture of this sculpture at the Jerwood Gallery in
>> Hastings on the south coast of England:
>> https://www.flickr.com/photos/25143643@
On Thu, Aug 22, 2019 at 12:47:28PM -0500, Tom Uban via cctalk wrote:
[...]
> On a possible related note, I am looking for information on converting CISC
> instructions to VLIW RISC.
Do you mean the theoretical basis, or implementing it? And is this
ahead-of-time ("I want to run *this* binary"), or
On Wed, Aug 28, 2019 at 07:07:21PM +1000, Guy Dunphy via cctalk wrote:
[...]
> RIFA caps may be the most hated components in electronics. Even worse than
> dipped
> tantalums, popped electrolytics, and decaying urethane foam.
Amiga collectors would say "batteries", since Commodore selected a bran
On Sat, Oct 19, 2019 at 02:23:46PM -0400, Nigel Johnson via cctalk wrote:
> Judging by the year, it was probably a teletext terminal. [...]
It's not Teletext, unless that word means something different on the other side
of the Pond. Teletext was basically a text system (the hint's in the name) wit
On Wed, Oct 30, 2019 at 02:21:07AM +, Mark Linimon via cctalk wrote:
> Any hints about where in the world this is?
Rule zero: if a location isn't given, it it almost certainly in the USA. Most
Americans think that the world ends at the US border, so this is a very safe
assumption.
On Thu, Nov 07, 2019 at 09:31:04AM -0200, Alexandre Souza via cctalk wrote:
> Last IP address of the server (71.91.242.107) also directs to a "it works"
> page, so the entire directory may have been deleted. I also tried to access
> subpages (like /Sinclair/Interface2/Interface/Interface2_Circuitry
On Wed, Jan 08, 2020 at 10:17:29AM -0800, Chuck Guzis via cctalk wrote:
> Before I go delving into my pile of SCSI X3T10 documentation and interface
> chip datasheets, exactly *which* flavor of SCSI are we talking about here?
Given the reference to the Amiga, almost certainly SCSI-1, i.e. 8 bit wi
On Sat, Feb 22, 2020 at 12:47:44AM -0800, Ali via cctalk wrote:
> Does anyone have the "Extended Industry Standard Architecture Revision 3.10"
> specification either in printed/book form that they are willing to separate
> from or in some sort of electronic format ala PDF? I am mostly interested in
On Tue, Mar 10, 2020 at 10:07:45AM +1100, Doug Jackson via cctalk wrote:
> At the end of the day there are three paths.
> 1. Accept that HP doesn't give two hoots about hobbyists and patch the
> abandoned operating system to fix the problem.
Welcome to the eyepatch-and-parrot approach of the res
On Thu, May 21, 2020 at 01:34:09PM +0200, Sytse van Slooten via cctalk wrote:
[...]
> So basically what it comes down to is Quartus or Vivado. I’ve kind of
> implicitly chosen Quartus, because the Altera based development boards tend
> to be a lot nicer and cheaper than the Xilinx based stuff. I ha
On Sat, May 23, 2020 at 01:24:01PM -0700, Fred Cisin via cctalk wrote:
> On Sat, 23 May 2020, Liam Proven via cctalk wrote:
[...]
>> • the Sinclair ZX Spectrum, which was cheaper & had a crappy keyboard,
> That was a keyboard??
> I thought that it was just a picture of a keyboard glued on, as a sug
On Mon, May 25, 2020 at 04:17:25PM +0200, Liam Proven via cctalk wrote:
[...]
> So, yes, PETSCII lets you draw some stuff, but I was only about 12. It really
> wasn't enough to grab me for long, not for the price of a car.
If you prefer the price of your wheels to be around £205, there's this
just
On Tue, May 26, 2020 at 02:19:41PM -0700, Yeechang Lee via cctalk wrote:
[...]
> Longstanding tradition in the British computers market.
> "*New Scientist* stated in 1977 that 'the price of an American kit in dollars
> rapidly translates into the same figure in pounds sterling by the time it has
>
On Tue, May 26, 2020 at 05:04:10PM -0700, Fred Cisin via cctalk wrote:
[...]
> also, the Amiga wrote track rather than sector at a time, so a sector write
> needed to be delayed until the track was ready to be written
And could therefore corrupt ten unrelated sectors from other files at the same
t
On Wed, Jun 17, 2020 at 05:39:44PM -0400, Ethan O'Toole via cctalk wrote:
[...]
> The early plasma TVs usually had BNC RGBHV inputs and such. They could take
> VGA in very easily. I'm pretty sure a PC would have been way easier to deal
> with and could reach much higher resolutions... without needi
On Wed, Jun 17, 2020 at 10:50:20PM +0100, Rob Jarratt via cctalk wrote:
[...]
> Easy, pictures of unidentified components, sending out schematics that have
> been reverse engineered, documentation, pictures of scope traces when trying
> to find a fault, all sorts. I would agree on a size limit thou
On Thu, Jun 18, 2020 at 09:42:16AM +0100, Dave Wade via cctalk wrote:
[...]
> I wrote this as one dollar => $1.00
> This as one pound => $1
> And this as one euro => €1
> Lastly one cent => ¢1
This came over the wire as follows:
> Content-Type: text/plain; charset="utf-8"
> Content-Transfer-Encod
On Fri, Jun 19, 2020 at 12:21:14AM +0100, Pete Turnbull via cctalk wrote:
> [...] Some of the UK banking systems like HOBS survived using viewdata that
> way up to the end of the 1990s, and I still have at least a couple of 1275
> modems.
Hobbyists are still running Viewdata BBSes. Here's one conn
On Thu, Jun 18, 2020 at 10:28:05PM -0400, Tony Aiuto via cctalk wrote:
[...]
> And sometimes, a picture really is worth 1000 words.
But pictures also consume magnitudes-of-order more resources than a thousand
words, and should be used rather more judiciously than they are.
> A tiny SVG diagram in
On Fri, Jun 26, 2020 at 09:39:57PM +, W2HX via cctech wrote:
> Thanks for previous help on this project. I am working on an old 486 computer
> and I have replaced a 40 pin IDE hard drive with this SD adapter...
> https://www.amazon.com/gp/product/B07G29TZPS/ref=ppx_yo_dt_b_asin_title_o01_s00?ie
On Sat, Jun 27, 2020 at 07:15:25PM -0600, ben via cctalk wrote:
[...]
> At what point do variable names end being comments? There needs to be more
> work on proper documenting and writing programs and modules.
What, auto-generated "documentation" which just lists function names and type
signatures
On Sun, Jun 28, 2020 at 01:32:02PM -0700, Chuck Guzis via cctalk wrote:
[...]
> Why is byte-granularity in addressing a necessity?
Because C's strings are broken by design and require one to be able to form a
pointer to individual characters.
> It's only an issue if you have instructions that ope
On Mon, Jul 06, 2020 at 03:54:10PM -0600, Grant Taylor via cctalk wrote:
[...]
> If I needed one of those drives, I'd be willing to pay $1 / GB plus shipping
> and handling if they were known to be good. (If I needed them) I would buy
> them sight unseen if you ran SpinRite level 2 on the drives an
On Thu, Jul 09, 2020 at 01:24:11PM +0200, Stefan Skoglund via cctalk wrote:
[...]
> Vikt (tittade pga frågan om diskarna på vad frakten från Nederländerna skulle
> kosta dvs ca 250 SEK) ?
According to Google Translate: "how much to Sweden?"
For Sweden specifically, about €10 or SEK100. For Europe
On Tue, Jul 14, 2020 at 10:47:11AM -0700, Ali via cctalk wrote:
[...]
> Is there any reason a Smart Array controller can't be used as a simple SCSI
> controller? I.E. No array, just using it to drive a tape library? TIA!
In general, hardware RAID controllers cannot be used as ordinary controllers.
On Thu, Jul 16, 2020 at 08:52:16AM -0700, Ali via cctalk wrote:
[...]
> This is an article (for the layman) written in 2010 predicting the lack of
> usability of RAID 6 by 2019:
> www.zdnet.com/article/why-raid-6-stops-working-in-2019/. I found the math in
> it interesting and the conclusions prett
On Wed, Jul 15, 2020 at 01:09:21PM -0700, Ali via cctalk wrote:
[Hardware RAID controllers]
>> There is no good use case for them in 2020, which is why they're all
>> suddenly quite cheap.
> Why do you say that? Not disagreeing per se but just wondering the reasoning
> behind it.
On the "no good u
On Fri, Jul 24, 2020 at 12:59:51AM +, dwight via cctalk wrote:
> I would think to be a mainframe, it has to have a I/O processor. That is
> about all I can think of.
Contemporary PCs satisfy that description: GPUs are the most visible I/O
processor, and all of the other bus interfaces such as
On Thu, Aug 20, 2020 at 04:38:49PM +1000, Steve Malikoff via cctalk wrote:
[...]
> I had a thought, that if the pin spacing was on par with say a common 15-pin
> VGA male connector I could buy a bunch of dirt cheap Golden Dragon ones, set
> them up in the mill and run a high speed slitting saw diag
On Thu, Aug 27, 2020 at 07:11:05AM +, Randy Dawson via cctalk wrote:
[...]
> I hope you say no, because I will probably learn more by keying in the code
> in the text, and finding my errors.
The errors in the code will not be yours. You will learn more by throwing
everything written by Herbert
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