16-sector disks?

From: Doug Spence <hrothgar_at_total.net>
Date: Wed Sep 1 22:49:27 1999

On 01-Sep-99, allisonp_at_world.std.com wrote:
>> How common are 16-sector hard sectored disks?

>Not very common.

Well, at least I can make some more from soft sectored disks once I find
my mother's miniature hole punch. :)

>> I found some disks for my AES 7100, and that's what they are (17
>> holes!).

>Yep, index plus 16 sector holes. The 17th one is oddly positioned to
>the rest so the system can tell it's at the start/end of the media.

Yup, I noticed that. Before I had seen a hard sectored disk I didn't
know how that would be accomplished. I thought that maybe the sector
holes would be at a different distance from the centre of the disk, with
another hole in the jacket. I prefer the solution that was used in the
real world - less wasted disk surface! :)

>Oh, 10 sector (NS*) have 11 holes (if you want to be picky 12... theres
>that big one dead center<grin>).

I have ONE 10-sector disk that was sent to me by a member of this list a
while back, in an attempt to get this AES box to do something. But not
even the drive light would turn on with that disk.

It likes the 16-sector ones, though. The lights come on, the head
moves, and then an error message comes up on the screen. :)

>> Unfortunately, the only Software disk I found only boots part way.
>> The other disks are Data disks, and they give me an error when I
>> try to boot from them. <s>

>No idea on the system used, likely unique to them.

Yes, I'm afraid so. And the flaky software disk I have even has the
name of the company it was registered to stamped on it. I doubt I'll be
finding much WaR3Z for this machine. :)

It's an 'office system'. It's primarily a word processor, but it can
join a network, and can do some number crunching and database functions
with the standard software. I found the disks inside some pockets
behind the front cover of a manual I found. Unfortunately, I didn't get
the full set of disks. And the back cover of the manual was missing,
possibly with the rest of the disks.

Its software is disk-based, though, so if I could a) dump the bootstrap
to disk and b) access the disks on some other machine, I could
conceivably write my own OS for it.

Apparently there was a version of CP/M for some AES boxes floating about
out there.


Doug Spence               Hrothgar's Cool Old Junk Page:
hrothgar_at_total.net        http://www.total.net/~hrothgar/museum/
Received on Wed Sep 01 1999 - 22:49:27 BST

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