The last generation 5.25" 4.x GB MO drive was unreliable which is why they
never went bigger I think. I have a bunch of 5.25" drives from a few makers
and all work.
-Original Message-
From: Carlo Pisani via cctalk
Sent: Saturday, July 21, 2018 5:43 PM
To: Chuck Guzis ; General Discuss
well, I was close. they all sound alike with brain fog. I still have a
bunch of it, some marked ACT, some ABLE.
On Sun, Jul 22, 2018 at 1:36 AM, Paul Birkel via cctalk <
cctalk@classiccmp.org> wrote:
> ACT is parked on the upper-right under the handle.
> Several variants of "10003" are marked
ACT is parked on the upper-right under the handle.
Several variants of "10003" are marked near the left handle.
And it's copyrighted 1976.
ACT = ABLE Computer Technology.
Their first product was PN 10001 (copyright 1976), the A.C.T. Univerter; see
"Able_Univerter_Nov81.pdf" on Bitsavers.
http://
Hi Gang,
I have a Kenwood communicator, I can't imagine many of these were sold in
the UK, I have the box, manual, warranty card, data cable. It runs of four
double As. Quite a weirdly niche gadget, if not strictly computers.
Does anyone have an idea of what a good condition one of these is to bu
On Sat, 21 Jul 2018, Alan Perry via cctalk wrote:
On 7/20/18 4:30 PM, David Griffith via cctalk wrote:
How feasable is it to compile and run SDL for SunOS? My main reason for
doing this is to play Z-machine games on Sparcstations using Frotz
(https://gitlab.com/DavidGriffith/frotz) using th
I think it's Applied Computer Technologies, and I think they made cache
and several other options. They were popular back in the day. I have a
bunch of their boards here.
Paul
On Sat, Jul 21, 2018 at 1:37 PM, Mattis Lind via cctalk <
cctalk@classiccmp.org> wrote:
> This board was sitting in slo
On 07/21/2018 02:43 PM, Carlo Pisani wrote:
> thus, MO drive units are not reliable?
At least not the later PMC ones. I remember that my drive wasn't even 6
months old when it died. PMC's policy was to replace it with a
"refurbished" (read: used) replacement. That one barely lasted a month.
PM
thus, MO drive units are not reliable?
2018-07-21 23:34 GMT+02:00 Chuck Guzis via cctalk :
> On 07/21/2018 02:12 PM, TeoZ via cctalk wrote:
>
>> I have old IBM MO Worm disks that are still readable, same with all my
>> MO disks (3.5" 130MB, 5.25" 1.3GB) but drives can be iffy. I would bet
>> that
On 07/21/2018 02:12 PM, TeoZ via cctalk wrote:
> I have old IBM MO Worm disks that are still readable, same with all my
> MO disks (3.5" 130MB, 5.25" 1.3GB) but drives can be iffy. I would bet
> that MO media will outlast us all while finding a drive to read them
> will be a problem.
I've got a f
I had a home CDR back when they were over $1000+ new. The media turned out
to be very reliable (and I have a bunch with gold, blue, green dye) and it
still readable as long as you didn't scratch the optical reflective layer. I
also used a laser printed paper cover which probably kept air out. I
hi
I am looking for a ps/2 keyboard with a 3 buttons trackball
I am currently using a Cherry's kb, but it has a built-in 2 buttons
trackball and the software I need to use requires the third button to
select items
what do you suggest, guys?
On Sat, 21 Jul 2018, Carlo Pisani via cctalk wrote:
what about MO? (magneto-optic disks)
- WORM (write once, read many)
- WMRM (write many, read many)
and what about magnetic-tapes? (e.g. DDS4, DLT, LTO2)
which of them lasts for the most?
MO units and disks are a bit costly
say >=50 euro for 4.5G
any identification number sn front or back? can tell from just that shot.
On Sat, Jul 21, 2018 at 2:37 PM, Mattis Lind via cctalk
wrote:
> This board was sitting in slot 21 of the backplane in a 11/45
>
> https://i.imgur.com/ZYWZQCo.jpg
>
> What kind of board is this?
>
> It has 26 bipolar RAMS.
On Jul 21, 2018, at 9:29 AM, Carlos E Murillo-Sanchez via cctalk
wrote:
>
> David Griffith via cctalk wrote:
>> How feasable is it to compile and run SDL for SunOS? My main reason for
>> doing this is to play Z-machine games on Sparcstations using Frotz
>> (https://gitlab.com/DavidGriffith/fr
what about MO? (magneto-optic disks)
- WORM (write once, read many)
- WMRM (write many, read many)
and what about magnetic-tapes? (e.g. DDS4, DLT, LTO2)
which of them lasts for the most?
MO units and disks are a bit costly
say >=50 euro for 4.5Gbyte R/W cartridge
and say >=500 euro for the driv
On Sat, 21 Jul 2018, Jim Manley via cctalk wrote:
The stability of the dyes is only part of the problem. Even mass-produced
read-only optical media (e.g., movie/video content DVDs) can become
unreadable over time
Hence the necessity of ANYDVD, or equivalent.
On Sat, 21 Jul 2018, Al Kossow via cctalk wrote:
The edge of the disk is SUPPOSED to be sealed. On cheap media, you see it
oozing, and the aluminum oxidizing from the edge inward. This was pointed
out to me already in the late 90's.
Fortunately, unlike most spinning rust disks, the default is t
Longevity has always been an issue.
(and we already know that 8" floppies outlast 3.5")
Does anybody here have experience with "M-Disc"?
It is available up to 100GB BDXL!
Drives start at less than $100; media is prices vary - the 100GB starts at
about $20 each, but the low capacity versions ar
On 7/21/18 10:26 AM, Jim Manley via cctalk wrote:
> Even mass-produced
> read-only optical media (e.g., movie/video content DVDs) can become
> unreadable over time because the reflective layer (typically aluminum)
> under the data-encoded layer corrodes due to the chemistry of the dyes and
> enc
This board was sitting in slot 21 of the backplane in a 11/45
https://i.imgur.com/ZYWZQCo.jpg
What kind of board is this?
It has 26 bipolar RAMS. Fairchild 93415 1kbit SRAM.
The manufacturer might be ACT whatever that is.
My guess is that it is some kind of cache board? It is connected to both
The stability of the dyes is only part of the problem. Even mass-produced
read-only optical media (e.g., movie/video content DVDs) can become
unreadable over time because the reflective layer (typically aluminum)
under the data-encoded layer corrodes due to the chemistry of the dyes and
encasing p
On 07/21/2018 08:14 AM, Carlo Pisani via cctalk wrote:
> what is your experience?
Generally very good. But then, my valuable stuff on CD-R was done on
MAM-A (Mitsui) "gold" media. Some of it is 20+ years old. On the other
hand, no CD-RW disk that still have has survived.
My experience with DV
orig first model hp scanjet worth saving!
Ed# www.smecc.org
In a message dated 7/20/2018 7:21:25 PM US Mountain Standard Time,
cctalk@classiccmp.org writes:
> It would appear that there ARE people who want Vintage Generic PC Crap.
> Except for the scanners.
On Sat, Jul 21, 2018 at 05:14:00PM +0200, Carlo Pisani via cctalk wrote:
[...]
> They complained their data completely lost after 5 years of storage in CD
> ROMs, pointing out that their CDs were perfectly conserved and kept clean
> without scratches, but all the data is gone lost since the media i
David Griffith via cctalk wrote:
How feasable is it to compile and run SDL for SunOS? My main reason
for doing this is to play Z-machine games on Sparcstations using Frotz
(https://gitlab.com/DavidGriffith/frotz) using the SDL interface to
play V6 games
Under SunOS 4.1.4, the last gcc version
Hi all...I got the following through my web site. Does anyone have a good
known-working test program for an AIM 65 cassette that I can attempt and or
send in response? I still have to set mine up and attempt to reproduce,
but someone here likely has more experience, it has been at least 5 years
s
On 7/20/18 2:43 PM, Mattis Lind wrote:
> Credits goes to AJ Palmgren for reading the tape and to David Gesswein from
> whom I stole and modified the MFM decoder.
>
> And as Al wrote: No it is not at all QIC. The drive has four fixed tracks
> and the encoding is MFM.
>
I hadn't looked at
hi
yesterday I was shocked by a couple of videos on Youtube where guys
pointed out their negative experiences with CD ROM and DVD RAM as
media for their own backup.
They complained their data completely lost after 5 years of storage in
CD ROMs, pointing out that their CDs were perfectly conserved
Before it goes away, could you take pictures of the circuit boards and dump the
firmware?
These are pretty rare, documentation even rarer. Richard at the computer
graphics museum
http://computergraphicsmuseum.org/ may be interested.
https://terminals-wiki.org/wiki/index.php/Tektronix_4113
On 7
Any interest in a Tek 4113 terminal (minus display)? I have one collecting
dust here and would like to trade for older Tek restoration help / other
pdp11 stuff. The keyboard is damaged but otherwise it's just old and
dirty, haven't opened it up. Located in western Pennsylvania.
thx
jake
It would appear that there ARE people who want Vintage Generic PC Crap.
Except for the scanners.
The scanners shouldn't have to be regarded as (Vintage) Generic PC Crap.
For example, I wrote a hack for the (possibly un-aptly named) SANE scanner
software to let it drive a SCSI scanner from VAX
What vintage SPARCstations and what version of SunOS? Are you talking
about BSD SunOS or Solaris?
On 7/20/18 4:30 PM, David Griffith via cctalk wrote:
How feasable is it to compile and run SDL for SunOS? My main reason
for doing this is to play Z-machine games on Sparcstations using Frotz
(
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