On 2018-02-08 21:05, Ian via cctalk wrote:
> On Feb 8, 2018, at 11:03, Tom Gardner via cctalk
> wrote:
>>
>> XT2190 was first produced in 3Q 1984 and last produced in 1989 which gives
>> yours a remarkable life span and well beyond the them at most 5 year
>> warranty.
>> Be thankful they lasted
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of emanuel
> stiebler via cctalk
> Sent: 09 February 2018 08:16
> To: Ian ; General Discussion: On-Topic and Off-Topic
> Posts
> Subject: Re: Maxtor full-height 5.25" drives of death
>
> On 2018-02-08 21
On Thu, Feb 08, 2018 at 03:30:17AM +, Zane Healy via cctalk wrote:
On Feb 7, 2018, at 7:22 PM, Grant Taylor via cctalk
wrote:
I'd suggest that you redirect your question to the comp.os.vms
newsgroup. I frequently see discussions there about software archives.
In fact, you can probably se
On 02/09/2018 01:40 AM, Chuck Guzis via cctalk wrote:
> On 02/08/2018 10:17 PM, Glen Slick via cctalk wrote:
>> Any idea if the drive orientation during storage might make any
>> difference in the failure rate? Usual PCB side down, PCB side up,
>> either side down, either end down? My guess it that
On 02/08/2018 11:56 PM, Chuck Guzis via cctalk wrote:
> On 02/08/2018 07:18 PM, Eric Smith via cctalk wrote:
>> At some point I read an article or a transcript of an interview with an
>> Intel employee (or former employee) who had been involved with the design
>> of the 8085, describing how he had
On 02/09/2018 05:22 AM, allison via cctalk wrote:
> Also all of the competitors and second sources that made 8085s had the
> added instructions. The are indeed handy too.
Calmos (then later Tundra) Semiconductor actually documents them in
detail in their CA80C85 datasheet, but those were from th
On 02/09/2018 05:20 AM, allison via cctalk wrote:
> At the other extreme I have over a dozen Quantum D540s (RD52 31mb full
> height)
> that are really old and getting older and still work without issues.
> Some of those
> have sat on the shelf for a decade and work fine when I need one.
I've sti
On 2/9/2018 12:25 PM, Chuck Guzis via
cctalk wrote:
On 02/09/2018 05:20 AM, allison via cctalk wrote:
At the other extreme I have over a dozen Quantum D540s (RD52 31mb full
height)
that are really old and getting older and still work without issues.
Some of those
have sat on the shelf for
anyone know of a power cord designation simlar to nema 13 but smaller its
used on a roland R8 has round pins has a power brick between it and te ain
power plug
https://electricdenimstudios.com/wp-content/uploads/2016/04/Roland-R8-MKII-Vintage-Drum-Machine-Human-Rhythm-Composer-02.jpg
http://www.vi
On 2/9/18 9:23 AM, Chuck Guzis via cctalk wrote:
> Calmos (then later Tundra) Semiconductor actually documents them in
> detail in their CA80C85 datasheet, but those were from the early 1980s.
the info is still out there
http://saxelec.com/doc/T8000.pdf
On 2/9/18 10:05 AM, js--- via cctalk wrote:
> A tangential question out of curiosity: who here has 5.25" MFM drives they're
> extremely surprised are still working, and
> which model(s)?
Looking around after purging about 100 dead drives a few months ago..
CDC Wrens seem to be holding up OK,
On Fri, Feb 9, 2018 at 11:29 AM, Al Kossow via cctalk wrote:
>
>
> On 2/9/18 9:23 AM, Chuck Guzis via cctalk wrote:
>
> > Calmos (then later Tundra) Semiconductor actually documents them in
> > detail in their CA80C85 datasheet, but those were from the early 1980s.
>
>
> the info is still out the
> From: Terry Stewart
>
http://www.classic-computers.org.nz/blog/2018-02-05-USB-in-MS-DOS-and-Win98.htm
> Hopefully the article will be useful to others who might want to do
> this.
Hi, can I appeal to you (and everyone else who writes up these kinds of
notes) to put this stuff
Hi folks,
Clearing out some of the larger DEC pieces I have, does anyone want these
before I offer them to the Centre For Computing History? They’d need to be
collected from Cambridgeshire, or I can deliver them if the distance is
reasonable. I kind of need the space quickly too.
Usual cavea
On 02/09/2018 10:57 AM, Warner Losh via cctalk wrote:
> For those that don't want to read through the entire datasheet,
> https://electronicerror.blogspot.com/2007/08/undocumented-flags-and-instructions.html
> has a good summary.
RIM and SIM were always documented for the 8085. Not doing so wou
On Thu, Feb 8, 2018 at 9:56 PM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 02/08/2018 07:18 PM, Eric Smith via cctalk wrote:
> > At some point I read an article or a transcript of an interview with an
> > Intel employee (or former employee) who had been involved with the design
>
floppies recovered and uploaded to http://bitsavers.org/bits/HP/HP_9000/cpm-68k
I'm pretty sure this will only work in a 9121 single-sided drive but I'll be
trying
to boot it soon
On 02/09/2018 01:05 PM, js--- via cctalk wrote:
>
>
> On 2/9/2018 12:25 PM, Chuck Guzis via cctalk wrote:
>> On 02/09/2018 05:20 AM, allison via cctalk wrote:
>>
>>> At the other extreme I have over a dozen Quantum D540s (RD52 31mb full
>>> height)
>>> that are really old and getting older and stil
On 02/09/2018 12:23 PM, Chuck Guzis via cctalk wrote:
> On 02/09/2018 05:22 AM, allison via cctalk wrote:
>
>> Also all of the competitors and second sources that made 8085s had the
>> added instructions. The are indeed handy too.
> Calmos (then later Tundra) Semiconductor actually documents them
On 2018-02-09 4:05 PM, Al Kossow via cctalk wrote:
floppies recovered and uploaded to http://bitsavers.org/bits/HP/HP_9000/cpm-68k
I'm pretty sure this will only work in a 9121 single-sided drive but I'll be
trying
to boot it soon
I would suspect the issue is that it only support Amigo devi
It was thus said that the Great allison via cctalk once stated:
>
> The industry was loaded with that the 6502 series also had that going on
> as well as the 6809 and others.
Do you have any information about undocumented opcodes for the 6809?
-spc
On 02/09/2018 12:14 PM, allison via cctalk wrote:
>
> The grand daddy of them all is the RL02 salvaged in 1983 and still
> running along with two packs from then. Its life was 9 years of
> Monday through Friday power on and now intermittent about 5 times a
> month since 1994. Still booting a PD
On Fri, 9 Feb 2018, js--- via cctalk wrote:
A tangential question out of curiosity: who here has 5.25" MFM drives
they're extremely surprised are still working, and which model(s)?
I'll start. I've quite a few MFM drives, but the ones that really surprise
me are (2) Seagate ST-506, and (2) IMI
On 02/09/2018 12:26 PM, allison via cctalk wrote:
> IBM PC early also did that... other vendors of the 8088 didn't work
> in the 64K and early 256K IBM PCs due to a slight timing variation
> that reputedly intel helped design in. One gate fixed it but it was
> undocumented thing you could getaway
On 02/09/2018 04:18 PM, Sean Conner wrote:
> It was thus said that the Great allison via cctalk once stated:
>> The industry was loaded with that the 6502 series also had that going on
>> as well as the 6809 and others.
> Do you have any information about undocumented opcodes for the 6809?
>
>
On Fri, 9 Feb 2018, js--- via cctalk wrote:
A tangential question out of curiosity: who here has 5.25" MFM drives they're
extremely surprised are still working, and which model(s)?
I'll start. I've quite a few MFM drives, but the ones that really surprise
me are (2) Seagate ST-506, and (2)
> On Feb 9, 2018, at 11:26 AM, Adrian Graham via cctalk
> wrote:
>
> LA100-CA
I’m really glad you’re on the right side of the Pond! I really don’t have the
space to get tempted by something like this! :-)
Zane
On Fri, Feb 9, 2018 at 3:22 PM, Zane Healy via cctalk wrote:
>
> > On Feb 9, 2018, at 11:26 AM, Adrian Graham via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > LA100-CA
>
> I’m really glad you’re on the right side of the Pond! I really don’t have
> the space to get tempted by something like t
On 02/09/2018 01:59 PM, allison via cctalk wrote:
> I use that as an example of compatibility or extensions another more
> familiar is the NEC V20 fits in the 8088 socket but has enhanced
> performance and native 8080 emulation mode.
The V-series may be a good example of why Intel didn't want to
Sorry if this comes across wrong. I think I'm fighting a meat space
bug. As such my filters are a little less functional than normal.
On 02/09/2018 12:00 PM, Noel Chiappa via cctalk wrote:
Hi, can I appeal to you (and everyone else who writes up these kinds of
notes) to put this stuff on the
On Fri, Feb 9, 2018 at 3:41 PM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> The V-series may be a good example of why Intel didn't want to publicize
> the added 8085 instructions.
>
Maybe. What I'd heard from multiple sources was that they only wanted the
8085 to replace the 8080, so
Date: Wed, 31 Jan 2018 04:21:40 -0600
From: Michael Lee
To: cct...@classiccmp.org [2]
Subject: Re: who is in this picture? (VCF 199x)
Message-ID:
Content-Type: text/plain; charset=utf-8; format=flowed
***Sorry to be picking up
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