Just some references:
https://techheap.packetizer.com/computers/coco/unravelled_series/color-basic-unravelled.pdf
This states DLOAD is input only
On page 88, I don't see DLOAD listed - it goes from CLOADM straight to EXEC
(so it is not clear to me on how DLOAD is implemented)
https://colorcompute
ZX80, ZX81, Spectrum, Acorn Acom, Acorn Electron, BBC Micro, etc, etc.
Do you count machines like the Amstrad CPC464 which had a built-in
cassette recorder?
And don't forget the Commodore cassette port - used on the PET, VIC,
C64, ...
This blurred the line between built-in cassette drives and
On Wed, 25 Jan 2023 at 08:09, Christian Corti via cctalk
wrote:
>
> Chris, can you *please* correctly indent and cite messages you are
> referring to? I am getting annoyed by guessing what part is from whom.
Agreed.
It's dead easy if you're using Gmail. I am doing it right now in the
standard w
On Tue, Jan 31, 2023 at 10:56 AM Philip Belben via cctalk
wrote:
>
> > ZX80, ZX81, Spectrum, Acorn Acom, Acorn Electron, BBC Micro, etc, etc.
> > Do you count machines like the Amstrad CPC464 which had a built-in
> > cassette recorder?
>
> And don't forget the Commodore cassette port - used on the
> "DLOAD is the most obscure command in the Color
> Computer and absorbs a substantial amount of space in the ROM. DLOAD is so
> poorly
> understood because Tandy has never made the necessary companion routine,
> DSEND.
I wonder if it was originally intended (or even used) at the factory
to downlo
I take pains to clearly differentiate what I'm saying from what I'm quoting
(and usually on a phone). All the while I have to struggle readimg others mish
mosh, often there not even being a single line separating the 2. So please stop
complaining. Learn to adapt and overcome. On Tuesday, Ja
On Tue, 31 Jan 2023 at 13:14, Chris via cctalk wrote:
>
> I take pains to clearly differentiate what I'm saying from what I'm quoting
> (and usually on a phone). All the while I have to struggle readimg others
> mish mosh, often there not even being a single line separating the 2. So
> please
On 2023-01-30 6:39 p.m., ED SHARPE via cctalk wrote:
Hi
Sent from the all new AOL app for Android
On Mon, Jan 30, 2023 at 12:12 PM, Fred Cisin via cctalk wrote:>> The
5150 had a cassette port!>> . . .>> The 5160 no longer had the cassette port.
On Mon, 30 Jan 2023, Paul Berger via cctalk wrote
This is all on paper and weighs a fair bit.
Located in San Diego area, so pickup would be best.
I’m willing to ship it for 50% of the shipping cost.
All classic computer related:
UCSD Pascal pSystem listing from UCSD Pascal II.0 along with notes about what
BIOS failures look like.
Listing of a p
Regarding the recent GreaseWeazle story in Maryland:
What do you guys think of the "archive-ness" of current solid state
devices? M.2, NVMe, SSD, or even USB thumb sticks? A friend proposed
that when one of those starts to go bad, any kind of partial data recovery
becomes difficult - but any mo
On 1/31/23 10:22, Steve Lewis via cctalk wrote:
> Regarding the recent GreaseWeazle story in Maryland:
> I know the first generation CD/DVD disc are known to "go bad" - the
> material itself somehow degrades and becomes unreadable by modern drives.
> I'm not sure if that's still the case with newe
What do you guys think of the "archive-ness" of current solid state
devices? M.2, NVMe, SSD, or even USB thumb sticks? A friend proposed
that when one of those starts to go bad, any kind of partial data recovery
becomes difficult - but any more difficult than the old traditional
magnetic media?
On 1/31/2023 4:26 AM, Philip Belben via cctalk wrote:
ZX80, ZX81, Spectrum, Acorn Acom, Acorn Electron, BBC Micro, etc, etc.
Do you count machines like the Amstrad CPC464 which had a built-in
cassette recorder?
And don't forget the Commodore cassette port - used on the PET, VIC,
C64, ...
I d
On 1/31/2023 6:04 AM, Tony Duell via cctalk wrote:
"DLOAD is the most obscure command in the Color
Computer and absorbs a substantial amount of space in the ROM. DLOAD is so
poorly
understood because Tandy has never made the necessary companion routine,
DSEND.
I wonder if it was originally inten
On Tue, Jan 31, 2023 at 6:53 PM Jim Brain via cctalk
wrote:
> I think (I might have mentioned it at the thread start) it was part of a
> plan for a school network. Tandy offered a similar setup for schools
> for the Model 1/3/4 systems, where the "host" could send programs, and
> the clients wou
On Tue, 31 Jan 2023, Steve Lewis via cctalk wrote:
...
What do you guys think of the "archive-ness" of current solid state
devices? M.2, NVMe, SSD, or even USB thumb sticks? A friend proposed
that when one of those starts to go bad, any kind of partial data recovery
becomes difficult - but any
On Tue, Jan 31, 2023, 11:37 AM Ethan O'Toole via cctalk <
cctalk@classiccmp.org> wrote:
> > What do you guys think of the "archive-ness" of current solid state
> > devices? M.2, NVMe, SSD, or even USB thumb sticks? A friend proposed
> > that when one of those starts to go bad, any kind of parti
On Tuesday, January 31, 2023, 02:02:15 PM EST, Fred Cisin via cctalk
wrote:
Much of what is known about StoneHenge is purely speculation. (although I
have a trivially simple hypothesis about HOW "they managed incredible
calculations" for the placement of the stones.)
--
Grumpy Ol' Fred ci...
Much of what is known about StoneHenge is purely speculation. (although I
have a trivially simple hypothesis about HOW "they managed incredible
calculations" for the placement of the stones.)
On Tue, 31 Jan 2023, Chris via cctalk wrote:
C: I'm all ears.
I myself had arrived at a plausible expla
addendum:
The solstice sticks are not due to observation and planning.
Just needed a little shade when watching the sunset from my hammock.
Building anothe sundial.
I found some garden gnome, and one with a pointy head that can cast a
shadow.
But, he's kinda Jamaican.
So, I make a sign that sa
On 2023-01-31 12:39 p.m., Chris via cctalk wrote:
On Tuesday, January 31, 2023, 02:02:15 PM EST, Fred Cisin via cctalk
wrote:
Much of what is known about StoneHenge is purely speculation. (although I
have a trivially simple hypothesis about HOW "they managed incredible
calculations" for t
>> I think (I might have mentioned it at the thread start) it was part of a
>> plan for a school network. Tandy offered a similar setup for schools
>> for the Model 1/3/4 systems, where the "host" could send programs, and
>> the clients would load from the common host system.
> IIRC there was the
These items have all been claimed.
David
> On Jan 31, 2023, at 12:57 PM, grif...@mindspring.com wrote:
>
> Does the post office still have a book rate?
>
> On Jan 31, 2023 10:12, David Barto via cctalk wrote:
> This is all on paper and weighs a fair bit.
> Located in San Diego area, s
On Jan 29, 2023, at 9:37 PM, Zane Healy via cctalk
wrote:
>
> Some of the floppies I’m recovering data look to be either a multi-part ZIP
> file, or something. Was this a separate product from PKZIP? I’m not sure if
> I have a copy of PKZIP in the stuff I’ve recovered thus far. I’ve not pul
I've used neither. I have FWII here. Going to attempt to read the floppies (it
was sealed when I got my hands on it). Which do you prefer.
On Jan 31, 2023, at 10:22 AM, Steve Lewis via cctalk
wrote:
>
> I know the first generation CD/DVD disc are known to "go bad" - the
> material itself somehow degrades and becomes unreadable by modern drives.
> I'm not sure if that's still the case with newer or more modern CD/DVD disc
> (not jus
On Jan 31, 2023, at 10:36 AM, Chuck Guzis via cctalk
wrote:
>
> Half-inch open-reel 9 track tape seems to withstand the test of time as
> well as anything.
>
> The problem with the high-capacity tape used for server backup will be
> finding drives and controllers compatible with it in years to
> On Jan 31, 2023, at 5:03 PM, Zane Healy via cctalk
> wrote:
>
> On Jan 31, 2023, at 10:22 AM, Steve Lewis via cctalk
> wrote:
>>
>> I know the first generation CD/DVD disc are known to "go bad" - the
>> material itself somehow degrades and becomes unreadable by modern drives.
>> I'm not
> On Jan 31, 2023, at 2:19 PM, Paul Koning wrote:
>
>
>
>> On Jan 31, 2023, at 5:03 PM, Zane Healy via cctalk
>> wrote:
>>
>> On Jan 31, 2023, at 10:22 AM, Steve Lewis via cctalk
>> wrote:
>>>
>>> I know the first generation CD/DVD disc are known to "go bad" - the
>>> material itself s
why does this happen? how do I "reset" a floppy drive (in windows) so that it
tells me what's on the current disk, not what was on the previous disk that's
been removed.
On Tue, 31 Jan 2023, Chris via cctalk wrote:
why does this happen? how do I "reset" a floppy drive (in windows) so
that it tells me what's on the current disk, not what was on the
previous disk that's been removed.
WHICH version of Windoze?
What specific kinds, sizes, brands, and models, of dr
This is not the forum to ask MS Windows questions.
On Wed, 1 Feb 2023, 7:21 am Chris via cctalk, wrote:
> why does this happen? how do I "reset" a floppy drive (in windows) so that
> it tells me what's on the current disk, not what was on the previous disk
> that's been removed.
>
> (~$300), monitor (CGA had compoosite output, so could connect to cheap
> CCTV, etc. monitors, and CGA even had a dedicated 4 pin Berg for the
> SupRMod RF adapter), and maybe serial, and/or parallel.
Fred,
This is the first time I am hearing about this. I always thought the connector
was for
On Tue, Jan 31, 2023, 3:39 PM Tom Hunter via cctalk
wrote:
> This is not the forum to ask MS Windows questions.
>
Chris. Can I ask you stop and consider if you really need to post/reply.
Not every thought that enters ones head needs to be translated into a list
posting It feels like a stream
Try supp...@microsoft.com
On Wed, 1 Feb 2023, 7:21 am Chris via cctalk, wrote:
> why does this happen? how do I "reset" a floppy drive (in windows) so that
> it tells me what's on the current disk, not what was on the previous disk
> that's been removed.
>
On Tuesday, January 31, 2023, 06:28:55 PM EST, Fred Cisin via cctalk
wrote:
On Tue, 31 Jan 2023, Chris via cctalk wrote:
> why does this happen? how do I "reset" a floppy drive (in windows) so
> that it tells me what's on the current disk, not what was on the
> previous disk that's been r
On Tue, 31 Jan 2023, Tony Jones via cctalk wrote:
On Tue, Jan 31, 2023, 3:39 PM Tom Hunter via cctalk
wrote:
This is not the forum to ask MS Windows questions.
Chris. Can I ask you stop and consider if you really need to post/reply.
Not every thought that enters ones head needs to be tran
> I thought Flash could only hold the data in them X amount of years
> until
> the junctions discharge or whatever? It's less permanent than decent
> quality optical or pro magnetic media?
>
> You have to plug them in every so often to refresh I believe.
Does REFRESHING mean reread and rewrite or
(~$300), monitor (CGA had compoosite output, so could connect to cheap
CCTV, etc. monitors, and CGA even had a dedicated 4 pin Berg for the
SupRMod RF adapter), and maybe serial, and/or parallel.
On Tue, 31 Jan 2023, Ali wrote:
Fred,
This is the first time I am hearing about this. I always tho
The 4 pin RF modulator conector is the same as what is on the Apple2
On Tue, 31 Jan 2023, Ali wrote:
(~$300), monitor (CGA had compoosite output, so could connect to cheap
CCTV, etc. monitors, and CGA even had a dedicated 4 pin Berg for the
SupRMod RF adapter), and maybe serial, and/or para
On Wed, 1 Feb 2023, Tom Hunter via cctalk wrote:
This is not the forum to ask MS Windows questions.
while I agree in priciple,
the problem with pin 34 being expected to be "Disk Change" surfaced about
35 years ago, when IBM, on the AT, repurposed the "Drive Ready" signal,
On Tue, Jan 31, 2023, 5:03 PM Ali via cctalk wrote:
> > I thought Flash could only hold the data in them X amount of years
> > until
> > the junctions discharge or whatever? It's less permanent than decent
> > quality optical or pro magnetic media?
> >
> > You have to plug them in every so often
> On Jan 31, 2023, at 8:38 PM, Warner Losh via cctalk
> wrote:
>
> On Tue, Jan 31, 2023, 5:03 PM Ali via cctalk wrote:
>
>>> I thought Flash could only hold the data in them X amount of years
>>> until
>>> the junctions discharge or whatever? It's less permanent than decent
>>> quality opti
On Tue, Jan 31, 2023, 6:44 PM Paul Koning wrote:
>
>
> > On Jan 31, 2023, at 8:38 PM, Warner Losh via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > On Tue, Jan 31, 2023, 5:03 PM Ali via cctalk
> wrote:
> >
> >>> I thought Flash could only hold the data in them X amount of years
> >>> until
>
>It depends on the drive's firmware. Some do background scans of blocks while
>idle. Others do not. Since you >have no way of knowing which is which (or even
>when the backgroundscan is done), the safest way to force a >scan is to read
>the whole drive... any blocks whose raw error count is to
I just checked and I can still read without error some 8" disks that I
wrote, what, 45 years ago. They were FM 3740-type format and good
quality, so there's that.
As to the value of the 8080 code that I wrote, not so much.
This was only possible because I wrote the disks in a commonly-used
forma
On Tue, 31 Jan 2023, Ali via cctalk wrote:
Hmmm.. I wonder if there is a program akin to Spinrite that will do that
on SSDs (i.e. reread and rewrite every byte). I know Steve Gibson is
working on a new version of Spinrite that will work with SSDs so that
could be the solution when it comes out.
On 1/31/23 18:27, Fred Cisin via cctalk wrote:
> On Tue, 31 Jan 2023, Ali via cctalk wrote:
>> Hmmm.. I wonder if there is a program akin to Spinrite that will do
>> that on SSDs (i.e. reread and rewrite every byte). I know Steve Gibson
>> is working on a new version of Spinrite that will work with
> If you just need READ, and not WRITE, howzbout COPY *.* NUL
> actually
> XCOPY *.* NUL /S/E
> to include subdirectories
But would a red suffice to refresh or do you need to also write?
Also, this solution, and Chuck's, while workable for reads would leave you
with a blank screen for a long time
On Tue, Jan 31, 2023 at 6:22 PM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> I just checked and I can still read without error some 8" disks that I
> wrote, what, 45 years ago. They were FM 3740-type format and good
> quality, so there's that.
>
In all my days of doing data conversio
On Tue, Jan 31, 2023 at 11:50 PM Ali via cctalk wrote:
>
> > (~$300), monitor (CGA had compoosite output, so could connect to cheap
> > CCTV, etc. monitors, and CGA even had a dedicated 4 pin Berg for the
> > SupRMod RF adapter), and maybe serial, and/or parallel.
>
> Fred,
>
> This is the first
On 1/31/23 20:16, Ali via cctalk wrote:
> If I remember Spinrite would read and write each sector back in Level I or
> II and gave you a constant update I still have a license from long
> ago I think the last version came out in early 2000s...
If you look at the specs for SSDs or any flas
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