[Coco] coco dysan disk program

[Bill Pierce]

There is such a program... . It's called "Memory Minder". It was put out by J&M Systems of J&M Disk Controller fame. The only problems are: You have to be set up running J-Dos and it has to be a 40trk DS system. It seems from the ad in Rainbow that it came in DS & SS but the file I found is the DS one.

The Rainbow ad says
"Memory Minder is a disk drive test program that makes the following major checks of your drives without disassembly or special test equipment: head alignment, disk speed, index hole timing, azimuth, hysteresis, read sensitivity, and clamping. Memory Minder can be used to actually align the drives while viewing the graphics on the screen. This program is a must for anyone who values the data that is saved on diskettes.
* Diagnostic Diskette not included"

Both files are in the repository. Memory Minder is in .dsk format and J-Dos is in cart format (.ccc)
http://goyim.dyndns.org:8080/coco/Disks/Utilities/Memory%20Minder.zip
http://goyim.dyndns.org:8080/coco/Cartridges/JDOS%20V1.08%20(1983)%20(26-xxxx)%20(J&M%20Systems).ccc
http://goyim.dyndns.org:8080/coco/Cartridges/JDOS%20V1.10%20(1983)%20(26-xxxx)%20(J&M%20Systems).ccc
http://goyim.dyndns.org:8080/coco/Cartridges/JDOS%20V1.23%20(1985)%20(26-xxxx)%20(J&M%20Systems).ccc

According to the "run-me" file on the disk,
"Minder assumes you have 40 tracks, double sided, and a Dysan Digital Diagnostic Disk. Merely press {ENTER} when a DDD error occures if you don't have a DDD disk. Inner scans will fail if only 35 tracks are present, tracks 35-40 aren't formatted, or, there is a problem. RESET to exit tests... LOADM"DRVTEST" and EXEC. Unless using JDOS, the Index Hole Scan will fail. This is normal for RSDOS"

I also found some really good info on alignment here:
http://www.accurite.com/FloppyPrimer.html
and thier site that actually sells diagnostic disks... not Dysan, but "Accurite Analog Alignment Diskette":
http://www.accurite.com/AAD.html
Then I found Dysan disks on E-Bay:
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p5197.m570.l1313&_nkw=dysan&_sacat=58058

I hope this is some help

Music from the Tandy/Radio Shack Color Computer 2 & 3 
https://sites.google.com/site/dabarnstudio/
Bill Pierce
ooogalapasooo at aol.com




-----Original Message-----
From: Arthur Flexser <flexser at fiu.edu>
To: RJRTTY <RJRTTY at aol.com>; CoCo <coco at maltedmedia.com>
Sent: Sun, Jan 22, 2012 5:41 am
Subject: Re: [Coco] coco dysan disk program


Long ago I gave away all my CoCo stuff (yet somehow I still enjoy
ollowing the list.  Go figger...).  Anyway, not only do I not have
he program, I don't have the slightest idea who published or wrote
t.  Or for that matter, if it was ever a commercial program at all,
r if there were any docs accompanying it.  Hence my characterization
f this recollection as "probably of no practical use whatever".
orry!
I CAN definitely say that its existence is not an urban legend, so
erhaps someone else has heard of it.  Never saw it advertised
nywhere, so it may well have been somebody's homebrew project.
Art
On Sun, Jan 22, 2012 at 4:49 AM,  <RJRTTY at aol.com> wrote:
>As a historical note of probably no practical use whatever, there was
>a CoCo program that was designed to work with one of those Dysan
>calibration disks, which I used a number of times and which seemed to
>work quite well.

>Art
 Sir,  do you still have a copy of that program by any chance?
 I have one of those Dysan disks.

 If so could you send me a copy along with any docs?

 I will gladly pay you for it....


 Roy

--
oco mailing list
oco at maltedmedia.com
ttp://five.pairlist.net/mailman/listinfo/coco