On 2024-07-23 1:31 p.m., Paul Koning via cctalk wrote:
On Jul 23, 2024, at 2:09 PM, Gavin Scott wrote:
On Tue, Jul 23, 2024 at 7:11 AM Paul Koning via cctalk
wrote:
It's interesting that the designers of ARRA spoke about what they did, and were quite
honest about their mistakes. Quite
On 2024-07-23 12:09 p.m., Gavin Scott via cctalk wrote:
On Tue, Jul 23, 2024 at 7:11 AM Paul Koning via cctalk
wrote:
It's interesting that the designers of ARRA spoke about what they did, and were quite
honest about their mistakes. Quite refreshing. Unfortunately that narrative is in
On 2024-07-22 8:41 p.m., Ethan Dicks via cctalk wrote:
On Mon, Jul 22, 2024 at 9:05 PM Igor via cctalk wrote:
Me and my buddy are building an Apple I replica, for now successfully.
Recently we have tested the video signal :) However, we are having big
problems (as you can imagine) with finding
On 2024-07-22 7:06 p.m., Fred Cisin via cctalk wrote:
Besides slide rules, etc.
If you have an analog computer consisting of a 5 gallon bucket, and a 3
gallon bucket, and plenty of water available, What are the steps for a
PROGRAM to get a result of 4 gallons of water in the 5 gallon bucket?
On 2024-07-21 6:43 p.m., Paul Berger via cctalk wrote:
I would say digital a common relay has two states open or closed, when
you energize the coil it draws in the armature which will open or close
the relay's contacts.
Konrad Zuse built his first digital computer using largely relay logic
On 2024-07-21 8:29 a.m., Sellam Abraham via cctalk wrote:
I'm pretty sure the book included "Working" in the title because who wants
to build a non-working computer?
Also, mechanical analog computer = slide rule :)
Sellam
A working computer, is one that makes money?
Ben.
On 2024-07-20 10:41 p.m., Tony Duell via cctalk wrote:
On Sun, Jul 21, 2024 at 3:08 AM Steve Lewis via cctalk
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 mechanical "analog
computer" - and what they might
On 2024-07-02 6:42 p.m., Ali via cctalk wrote:
Totally opposite. GSP rates from the US to UK were crazy cheap.
I sold a bunch of items. Compared to USPS rates they were 1/3 often.
Again I am talking about getting stuff from the UK to the US. Generally
speaking it seems like shipping from
On 2024-07-02 1:05 p.m., Fred Cisin via cctalk wrote:
On Tue, 2 Jul 2024, Adrian Godwin via cctalk wrote:
Chinese to UK shipments are still relatively cheap but have also risen
somewhat with more sellers charging for postage.
eBay Chinese shipping seems impossibly low.
Keep it that way, I
On 2024-07-01 6:31 p.m., Mike Stein via cctalk wrote:
I've had the same experience with folks in Australia & NZ,
accumulating stuff in the US until there's enough to ship it down
under.
I suspect today still shipping is better than it was in the 70's.
It is just nobody wants to box and crate
On 2024-07-01 6:04 p.m., Mike Stein via cctalk wrote:
Hey, I sent you a motherboard from Toronto all the way to the South
Pole, remember? Well, OK, via San Francisco, but It wasn't too bad
then.
Hey there must be lots of vintage stuff at the south pole
nobody ships stuff back. :)
On 2024-07-01 3:06 p.m., Ethan Dicks via cctalk wrote:
On Mon, Jul 1, 2024 at 7:58 AM Liam Proven via cctalk
wrote:
... vendors mostly
refuse to ship internationally and buyers won't look at stuff that's
abroad.
If you aren't used to customs declaration forms, it can be a pain.
Back in the
On 2024-06-27 9:22 a.m., Jim Brain via cctalk wrote:
The idea of leaving these items behind and thinking our loved ones will
see any value from selling is ludicrous, though, and I question the
sanity of those who seriously believe this. While I am sure there are
exceptions to the rule, I do
On 2024-06-13 4:30 p.m., Dave Dunfield via cctalk wrote:
I think the 86 came at a good time/place because the 8080 series had become
quite popular in microcomputers
and designers were feeling the limits of a 8-bit architecture - the 86 provided
a fairly powerful (for the time) and
easy
On 2024-06-13 12:06 p.m., Paul Koning via cctalk wrote:
On Jun 13, 2024, at 2:00 PM, Chuck Guzis via cctalk
wrote:
On 6/13/24 10:32, Paul Koning via cctalk wrote:
Huh? There is no direct connection between word length, register count, and
pipeline length.
Indeed. There are
On 2024-06-13 11:32 a.m., Paul Koning via cctalk wrote:
e up an entire chassis, 750-ish logic modules.
You never see a gate level delays on a spec sheet.
Our pipeline is X delays + N delays for a latch.
Gate level delays are not interesting for the machine user to know. What is
On 2024-06-13 9:40 a.m., Jon Elson via cctalk wrote:
AACK! Sorry, that was supposed to be F-16!
The divide bug strikes again.
Jon
What would one use today instead of the 586?
Ben.
On 2024-06-12 8:17 p.m., Dennis Boone via cctalk wrote:
> I wouldn't think it would work much better than a light bulb, though.
Load it up with a wide range tuner, and you could probably make contacts
across three states, though, just like the light bulb. :)
De
Wow the worlds cheapest RTTY
On 2024-06-10 10:05 a.m., Joshua Rice via cctalk wrote:
On 10/06/2024 00:28, ben via cctalk wrote:
The CPU Price it keeps going UP ... :(
8008 $25 1975
8080 $75 MITS kit 1975
8088 $125
386 $130 (286 $20)
Hardly, you can pick up a new CPU today for less than $50. It's not
going
On 2024-06-10 10:18 a.m., Joshua Rice via cctalk wrote:
On 10/06/2024 05:54, dwight via cctalk wrote:
No one is mentioning multiple processors on a single die and cache
that is bigger than most systems of that times complete RAM.
Clock speed was dealt with clever register reassignment,
On 2024-06-09 11:01 a.m., Chuck Guzis via cctalk wrote:
On 6/9/24 08:40, Murray McCullough via cctalk wrote:
Intel introduced to the world the x86 processor: the CISC technology still
with us. So what has changed other than speed and upward development?
The Internet?
Really, it's always been
On 2024-06-09 10:59 a.m., Milo Velimirović via cctalk wrote:
Word length. :)
On Jun 9, 2024, at 10:40 AM, Murray McCullough via cctalk
wrote:
Intel introduced to the world the x86 processor: the CISC technology still
with us. So what has changed other than speed and upward development?
On 2024-05-28 5:45 p.m., Chuck Guzis via cctalk wrote:
On 5/28/24 16:29, ben via cctalk wrote:
On 2024-05-28 1:23 p.m., John via cctalk wrote:
So what, then, consitutes a Real Operating System, and why?
I am grumpy about OS's like MSDOS, in that programs kept by passing
DOS to handle screen
On 2024-05-28 1:23 p.m., John via cctalk wrote:
So what, then, consitutes a Real Operating System, and why?
I am grumpy about OS's like MSDOS, in that programs kept by passing
DOS to handle screen, and serial IO.
I also favor OS's that don't require one to build a file control block.
On 2024-05-28 10:58 a.m., Tony Duell wrote:
On Tue, May 28, 2024 at 5:56 PM ben via cctalk wrote:
--First Appartment I lived in had gas refrigerator/stove AND still had some
fixtures for gas lighting. washer/dryer/furnace/hot water were all shared in
basement, real screw in fuses
Same concept as, if one guy living in a formerly industrial loft has water cooling, and 300 amp 3
phase power available, that does NOT make any computer requiring that "personal". For
that I'd say must be able to plug into 50% of all homes, but realize more quibbling might apply
there,
On 2024-05-28 8:43 a.m., CAREY SCHUG via cctalk wrote:
so if ONE person maybe living in a loft formerly industrial space has water
cooling, and 200 amp 3 phase in their house, that automatically makes EVERY
computer using that power personal computer eligible?
--First Appartment I lived in
On 2024-05-27 6:23 a.m., Christian Corti via cctalk wrote:
On Sat, 25 May 2024, Chuck Guzis wrote:
Offhand, if I were King of the World, I'd immediately eliminate from
competition those computers that cannot be run from a US 120 volt 15 amp
wall receptacle. The rationale being that anything
On 2024-05-26 2:01 p.m., Chuck Guzis via cctalk wrote:
On 5/26/24 11:11, ben via cctalk wrote:
On 2024-05-26 10:56 a.m., Fred Cisin via cctalk wrote:
I did use a CP/M machine once, but the 8" drive was a bit sticky.
You rap the drive to get it unstuck, but if you rap it too hard
the ma
On 2024-05-26 10:56 a.m., Fred Cisin via cctalk wrote:
On Sun, 26 May 2024, ben via cctalk wrote:
I think the most important thing for a Personal Computer,
is the average Joe, can afford and use it. The second thing is
to have ample memory and IO to run useful programs. The basic Apple
I,II
On 2024-05-25 3:57 p.m., Chuck Guzis via cctalk wrote:
On 5/25/24 13:41, Fred Cisin via cctalk wrote:
On Sat, 25 May 2024, Chuck Guzis via cctalk wrote:
. . . or 100V or 220V in locations where those are the standard for
household residential wiring.
Woulld not want to automatically exclude
On 2024-05-25 5:42 p.m., Mike Katz via cctalk wrote:
I'm sorry but I beg to differ with you here. The DEC PDP line of single
user interactive computers (as opposed to batch processing only systems)
started in the late 1950's and early 1960's and spawned many generations
as well as copies
On 2024-05-20 12:16 p.m., Will Cooke via cctalk wrote:
On 05/20/2024 1:02 PM CDT Wayne S via cctalk wrote:
In the vt100, setup menu “B” had an interlace on or off setting.
I just looked it up.
That is almost certainly setting what type of signal is generated. Like a TV
of the same
Don't get your mind get old. It’s a choice.
My mind is fine, it the eyes that are going.
Screens are getting bigger and text is getting smaller.
I must be dreaming that.
On 2024-05-19 9:14 a.m., Tarek Hoteit via cctalk wrote:
A friend of a friend had a birthday gathering. Everyone there was in their
thirties, except for myself, my wife, and our friend. Anyway, I met a Google
engineer, a Microsoft data scientist, an Amazon AWS recruiter (I think she was
a
On 2024-05-10 1:01 p.m., Chuck Guzis via cctalk wrote:
There have been some minor skirmishes in the MCU world over what
language should be used when programming.
EASY! OCTAL! If it worked on the 8 it is good enough for me.
C/C++ is very much top dog, probably because the development suites
On 2024-05-09 1:23 p.m., John via cctalk wrote:
Pascal never really made it on the microcomputer platform did it?
I can be convinced otherwise but it seems like microcomputing Pascal
was more of a staging environment for then upload into a production
mainframe/mini
Pascal was the language
On 2024-05-07 9:53 p.m., Tony Duell via cctalk wrote:
Anyway, some of their engineers were setting up for an
exhibition/demonstration when they realised they'd forgotten to bring
any speaker cable. No problem, one of them goes to the local 'DIY
Shed' (large hardware store) and buys some normal
On 2024-05-07 5:51 p.m., Chuck Guzis via cctalk wrote:
On 5/7/24 15:21, Fred Cisin via cctalk wrote:
How difficult is it to measure and compare "With/Without" signals?
If you peruse the old Bob Pease articles on "Electronic Design"
magazine, I believe more than once, he alluded to a proposed
On 2024-05-02 4:55 a.m., Liam Proven via cctalk wrote:
On Thu, 2 May 2024 at 00:51, Fred Cisin via cctalk
wrote:
What would our world be like if the first home computers were to have had
APL, instead of BASIC?
To be perfectly honest I think the home computer boom wouldn't have
happened, and
On 2024-05-01 11:26 p.m., Ali via cctalk wrote:
Don't forget to bring a towel.
Sellam
The fact that we all probably got that reference is the amazing part.
-Ali
What no white mouse trap!
On 2024-04-27 2:29 p.m., Paul Koning via cctalk wrote:
On Apr 27, 2024, at 1:15 PM, Tarek Hoteit via cctalk
wrote:
I came across this paragraph from the July 1981 Popular Science magazine
edition in the article titled “Compute power - pro models at almost home-unit
prices.”
“
https://www.youtube.com/watch?v=iJeu3LCo-6A
Dr who ads for prime.
On 2024-04-24 2:55 p.m., Gordon Henderson via cctalk wrote:
On Wed, 24 Apr 2024, David Brownlee via cctalk wrote:
If we're talking about machines with a Z80 and 6502, it would be
remiss not to link back to the machine mentioned in the original
message - the BBC micro, with its onboard 6502 and
On 2024-04-23 8:40 p.m., Chuck Guzis via cctalk wrote:
On 4/23/24 17:18, Bill Gunshannon via cctalk wrote:
On 4/23/2024 8:06 PM, Fred Cisin via cctalk wrote:
Did the Dimension 68000 (a multi-processor machine) have Z80 and 6502?
Couldn't Bill Godbout's CPU-68K board co-exist with other CPU
On 2024-04-22 1:02 p.m., Chuck Guzis via cctalk wrote:
I'd like to see a Z80 implemented with UV-201 vacuum tubes... :)
--Chuck
Real computers use glow tubes like the NE-2 or the NE-77.:)
>One other factor is that RISC machines rely on simple operations
>carefully arranged by optimizing compilers (or, in some cases,
>skillful programmers). A multi-step operation can be encoded in a
>sequence of RISC operations run through an optimizing scheduler more
>effectively than the
On 2024-04-21 5:26 p.m., Chuck Guzis via cctalk wrote:
On 4/21/24 12:11, ben via cctalk wrote:
I keep finding I still need 74XX just for having 10 TTL loads,
and 74LSXX just does not have the power.
Ever try BiCMOS chips? IIRC, the 74ABTxxx will drive loads of up to 60
ma, far in excess
On 2024-04-21 3:27 p.m., Jerry Weiss wrote:
While intention might have been to last XX years, I am becoming
increasingly pessimistic about longevity of most electronic devices. A
crystal radio with an open air capacitor seems like the only good bet.
Between electrolytic capacitor aging
On 2024-04-21 8:45 a.m., Mike Katz wrote:
As for the RP2040 being cheap crap, I beg to differ with you. It is a
solid chip, produced in 10s of millions at least. And, I would bet, a
better quality chip than your Z-80, if due only to improved IC
manufacturing technologies.
The pi looks
https://www.youtube.com/watch?v=YXTQvlkYJvI=4s
On 2024-04-20 8:33 p.m., Mike Katz via cctalk wrote:
For anything more sophisticated than your coffee pot the RP2040 from
Raspberry Pie is a fantastic little chip, dual core 133 MHz Cortex M0+
with 8 PIO engines, 264K of RAM, ADC, UART, SPI, I2C all for under a
dollar. I designed a fully
On 2024-04-20 12:20 p.m., Jim Brain via cctalk wrote:
On 4/20/2024 1:16 PM, Wayne S wrote:
Who still uses the Z80 line for new projects? Wouldn’t it be easier
and cheaper to just use an Arduino or Raspberry Pi?
Given the list you're posting on... :-)
Jim
True, but the Z80 is 5 volt logic.
On 2024-04-19 8:07 p.m., Fred Cisin via cctalk wrote:
Gee! Have sales gone down?
One more reason to use the 8080 subset when writing CP/M programs.
There still are RADIO SHACK 8080A's still on ebay, with @RARE@ prices.
NO thank you, z80's are the way to go.
Aren't there already some
On 2024-04-16 10:34 a.m., Van Snyder via cctalk wrote:
On Tue, 2024-04-16 at 12:38 +0100, Adrian Godwin via cctalk wrote:
901B is the first pocket calculator I remember - I don't know if there were
earlier ones.
The first one I remember is the HP Digital Slide Rule, about 1965. Six
digits.
Did any one ever use a keyboard to magtape as input device?
On 2024-04-12 7:23 p.m., Paul Koning via cctalk wrote:
On Apr 12, 2024, at 5:54 PM, CAREY SCHUG via cctalk
wrote:
...
my favorite terminal 3190 that was neon gas, so monochrome, but could take 5
addresses, and flip between 62 lines of 160 characters (always there), to 4
terminals of
On 2024-04-09 8:53 p.m., Murray McCullough via cctalk wrote:
I had not realized the IBM 360 was 60 yrs. old this month. I worked on such
a computer in the late 60s in Toronto. What one could do with 8 Kbytes of
ram was remarkable!
Happy computing
Murray
Real time sharing, not a 16K PDP 8?
.
On Sunday, April 7th, 2024 at 4:14 PM, Harald Arnesen via cctalk
wrote:
ben via cctalk [07/04/2024 20.05]:
I don't think bottles would be ship able. Now a keg of beer might be.
Or a least the old oak kegs you read in stories.
No problem to ship beer bottles, just pack them in diapers. We
On 2024-04-07 5:57 a.m., Christian Groessler via cctalk wrote:
On 4/6/24 5:37 PM, Mike Norris via cctalk wrote:
Additional
I would like £5 beer money for this one please!
Writing Open VMS Alpha Device Drivers in C - Margie Sherlock/Leonard
Szubowicz
I'd take it.
I can send you beer money,
On 2024-04-06 9:40 a.m., Phil Budne via cctalk wrote:
Paul Koning wrote:
Yes, and some emulations have done this, such as Phil Budne's famous work in
SIMH.
Famous?? I'm famous???!!!
To be fair, I started with Douglas W. Jones' PDP8 Emulator.
Which reminds me of:
If I have seen
On 2024-03-30 9:49 p.m., Tom Hunter via cctalk wrote:
Sorry I mistyped. I meant Mouser and Digikey, not Amazon and Digikey.
Well the searches suck on both. Digikey is bad for having 0 stock
listings. Digikey is turning out to be more the Radio Shack for parts.
On 2024-03-30 8:53 p.m., Glen Slick via cctalk wrote:
You can also buy parts direct from TI, for example they currently show
around around 3000 SN74LS04N parts in stock.
https://www.ti.com/product/SN74LS04/part-details/SN74LS04N
The prices for that part match the current Mouser prices of
On 2024-03-30 8:23 p.m., Jonathan Chapman via cctalk wrote:
Been lurking for a while, but this topic hits true with some recent
experiences. I would not hesitate to buy most common digital ICs on Amazon
or ebay
I mean we had to stop buying 7400 series from Jameco over counterfeits, so it's
On 2024-03-30 6:10 p.m., Jonathan Chapman via cctalk wrote:
Standard TTL 74XXX is drying up rather quickly. Futurlec still has some
TTL but 7404s are all gone. Even LS is hard to find.
Ours comes from Mouser, between two part #s they have over 7,000 74LS04s in DIP
packaging in stock. Didn't
On 2024-03-30 4:27 p.m., Will Cooke via cctalk wrote:
I'm not clear on whether you mean some specific chips or in general, but here
is my experience.
For things that are in current production or recently discontinued, I have had
extremely good luck with Chinese suppliers either from Amazon or
On 2024-03-28 5:50 p.m., Fred Cisin via cctalk wrote:
OTOH, spammer mailing lists, and leaked personal and trade secrets seem
to last forever.
You forgot Mickey Mouse.
--
Grumpy Ol' Fred ci...@xenosoft.com
On 2024-02-27 3:09 p.m., Paul Koning via cctalk wrote:
On Feb 27, 2024, at 4:49 PM, CAREY SCHUG via cctalk
wrote:
Religion warning: I was a mainframer. Since at any practical budget, they can
only be emulated,
Dumpster diving is a 0 dollar budget.
People could afford the APPLE II,
On 2024-02-27 1:13 p.m., Doug McIntyre via cctalk wrote:
On Tue, Feb 27, 2024 at 11:10:34AM -0700, ben via cctalk wrote:
PS: With low cost Chinese PCB's and vintage parts, why are people not
building real hardware replica's of interesting machines.
But they are..
I can't tell what you'd find
On 2024-02-27 9:20 a.m., CAREY SCHUG via cctalk wrote:
It's not a cassette, but the PB-440 (Pitney-Bowes), renamed Raytheon 440 and its upgrade
the raytheon 520 had a large reel paper tape with a bidirectional read and an
"operating system" Load the os, say we want to run fortran, spin down
On 2023-12-20 11:16 a.m., Rich Alderson via cctalk wrote:
I wish you all a joyous Winter Solstice Festival, however you may choose to
celebrate it.
I like the day after, the days get longer again.
Rich
Ben, in the dark.
On 2023-12-20 11:16 a.m., Rich Alderson via cctalk wrote:
Happy DEC-20 Day!
My late friend Mark always noted that TOPS-20 (and the DECSYSTEM-20 on which it
runs) was a great improvement on its successors.
I wish you all a joyous Winter Solstice Festival, however
On 2023-11-22 6:53 p.m., Chuck Guzis via cctalk wrote:
On 11/22/23 16:47, Fred Cisin via cctalk wrote:
Yup. I have vivid memories of the Intel rep telling us that not only
was the 8086 compatible with the 8085, conversion could be automated
through their ISIS-II based conversion program--and
On 2023-11-20 5:36 p.m., Murray McCullough via cctalk wrote:
On Nov. 15, 1971 Intel commercially released the 4004 microprocessor which
some consider to be the first. Nonetheless, even if not in agreement, it
made possible the instrument which drives the classic-computing industry or
at the very
On 2023-11-07 7:05 p.m., Paul Koning via cctalk wrote:
On Nov 7, 2023, at 8:49 PM, Paul Koning wrote:
Hi... I'm seriously rusty on official RSTS installation procedures. I'm
trying to install DEC C using the C_V1_2.tap file from the bitsavers
bits/DEC/pdp11/rsts directory. It's
On 2023-10-02 4:36 p.m., Rick Bensene via cctalk wrote:
Mike wrote:
...
Gawd, I still remember those numbers, some 60 years later; so why can't I
remember my thirty-year old cell phone number...
Because you rarely, if ever, call it. ;-)
I never could figure out how to call myself, so I
On 2023-10-02 1:15 p.m., Fred Cisin via cctalk wrote:
On Mon, Oct 2, 2023 at 5:18 AM Stefan Skoglund via cctalk
wrote:
The main problem with that lorry hurtling down the freeway is
latency.
I need to move 1 PB . how long will it take filling and packing
enough IBM LTO-9 tapes to
On 2023-09-23 12:36 p.m., Paul Koning via cctalk wrote:
On Sep 22, 2023, at 9:30 PM, Martin Bishop
wrote:
Paul
I endorse your point regarding Lattice's gouging. Support for anything prior to
the XO parts now costs a significant premium. Their XO2 parts are the most useful
to this
On 2023-09-22 3:16 p.m., Mike Katz via cctalk wrote:
Martin,
The debug board will need to have the following functionality:
1. Read and write to/from memory when the CPU is running using one
cycle data break (DEC's version of DMA for the PDP-8). Single Cycle
DMA requires some
On 2023-09-22 12:34 p.m., emanuel stiebler via cctalk wrote:
On 2023-09-22 12:04, Mike Katz via cctalk wrote:
I'm working on the design for an Omnibus (PDP-8/E) debug board and I
am not very good at circuit design. I know there are programs that
will compile something that looks like C into
FPGA's tend to be ALL 3.3 volts or less today. Cmos 22v10's are nice
chips to program that is still working at 5 volts. FPGA's also have
high learning curve to catch the bugs and gotya's.
I got tl866 ii + programer and it works great under windows, with wincupl.
On 2023-09-11 10:43 a.m., Paul Koning via cctalk wrote:
On Sep 10, 2023, at 6:24 PM, Fred Cisin via cctalk
wrote:
On Sun, 10 Sep 2023, Will Cooke via cctalk wrote:
I make an official motion that Fred write his own "Everything I Know About Floppy
Disks" page / book /encyclopedia.
I
On 2023-09-07 3:44 p.m., ste...@malikoff.com steven--- via cctalk wrote:
On 09/07/2023 2:36 AM AEST Mike Katz via cctalk wrote:
Does VAX have nothing to do with vacuum cleaners?
Here in Oz, VAX has been a popular brand of vacuum cleaner for many decades. We
had one until recently.
On 2023-09-03 9:21 p.m., Wayne S wrote:
I was thinking of the parts kits that was offered by sone arrangement between
the author of a construction article and some parts house. Was handy if you
really wanted to build the device.
I was thinking the same thing. Now days any construction
> What kinda kits we talking about?
> Heathkit kind or the kind you could get in popular electronics?
http://www.sworld.com.au/steven/educ-8/
Give the other magazines a chance. :)
I always looked a the 1/2 page ads.
Get a keyboard $99. 1 cent sale on 7400's. Get a second one for just a
On 2023-09-03 5:08 p.m., Adrian Godwin via cctalk wrote:
Yes, that's what I mean.
Of course, it's no good for income-generating things but if all you want to
do is make the design available, it's much less hassle than buying stocks
of pcbs and mailing them out for minimal profit. It pushes the
On 2023-09-02 8:01 a.m., Will Cooke via cctalk wrote:
On 09/02/2023 8:50 AM CDT Peter Corlett via cctalk
wrote:
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
Unicorn Electronics has
On 2023-09-02 7:50 a.m., Peter Corlett via cctalk wrote:
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
On 2023-09-01 12:18 p.m., Adrian Godwin via cctalk wrote:
Interesting that processors are getting wider and wider, whilst (perhaps
not in the same timeframe) we have moved away from parallel interfaces
towards serial ones. I know there are reasons for that in
operations-per-cycle and the
On 2023-08-29 6:46 a.m., Chris Zach via cctalk wrote:
-BUT- That does not mean it *can't* be restored, only that $15,000 is
ridiculous for a machine that clearly needs an expert with time and
money.
b
True, it is a silly price. I was thinking about this on the forum: If
someone offers to
On 2023-08-17 2:30 p.m., Bill Degnan via cctalk wrote:
On Thu, Aug 17, 2023, 4:07 PM Fred Cisin via cctalk
wrote:
On Thu, 17 Aug 2023, Bill Degnan via cctalk wrote:
I should add that part of the fun is to locate parts for free or cheap
from
dead or unimportant period electronics, cards,
On 2023-08-17 12:28 p.m., Ethan Dicks via cctalk wrote:
On Sat, Aug 5, 2023 at 4:08 PM Bill Degnan via cctalk
wrote:
But...because the apple I is so valuable people have been motivated to
produce really nice replica motherboards. The replicas give many the
chance to experience the Apple I at
On 2023-08-05 11:16 a.m., Chuck Guzis via cctalk wrote:
On 8/3/23 00:45, Joshua Rice via cctalk wrote:
Value is a very much reliant on both desirability and historical significance.
I guarantee most people who own an Apple 1 never use it, and it sits in a
cabinet/shelf somewhere.
On 2023-08-01 12:59 p.m., Tom Stepleton via cctalk wrote:
I have to assume that the SCAMP used in the IBM 5100 Portable Computer and
relatives must have been a great deal smaller than the earlier machine.
As such, a logical and unambiguous way to refer to it is "SCAMP Shrimpy."
I hope this is
On 2023-06-22 10:04 p.m., Ken Seefried via cctalk wrote:
Didn't see anyone mention it, but one should recall that the whole memory
space on the 8088/8086 was 1M, so a 'limit' (whatever kind) of 640K wasn't
the dumbest computer design decision ever made. In addition to that, Intel
was telling
On 2023-06-16 4:56 p.m., Chuck Guzis via cctalk wrote:
On 6/16/23 12:48, ben via cctalk wrote:
What cpu?
Minix was 16 bit code only. I suspect 16 bit code here as well.
Remember 32 bit code is 2x the size of 16 bit stuff.
32-bit, I'm afraid. To quote:
WHAT IS LINUX?
Linux is a Unix
On 2023-06-16 2:31 p.m., r.stricklin via cctalk wrote:
On Jun 16, 2023, at 12:48 PM, ben via cctalk wrote:
Remember 32 bit code is 2x the size of 16 bit stuff.
Are you, like, trying to play the list for laughs, with this kind of comment?
It is not? 3x's better.
All I know after x86
On 2023-06-16 2:12 p.m., Bill Gunshannon via cctalk wrote:
On 6/16/2023 3:51 PM, Paul Koning via cctalk wrote:
On Jun 16, 2023, at 3:40 PM, Chuck Guzis via cctalk
wrote:
On 6/16/23 12:02, ben via cctalk wrote:
Ken , Jobs and Wozniak need their fair share.
Graphics and file system
On 2023-06-16 1:40 p.m., Chuck Guzis via cctalk wrote:
On 6/16/23 12:02, ben via cctalk wrote:
Ken , Jobs and Wozniak need their fair share.
Graphics and file system buffers take up more
space than you expect.
I just transferred a DC150 tar tape. Total (uncompressed) file size was
11MB
On 2023-06-16 12:24 p.m., Mike Katz via cctalk wrote:
I was at a Comdex once in Chicago where the featured speaker was Bill
Gates and he said that Microsoft would never write a program that needed
more than 256K of memory.
A few years later, Microsoft Exchange Server required a minimum of
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