Sharp MZ-80B boot disk

From: vance_at_neurotica.com <(vance_at_neurotica.com)>
Date: Thu Dec 19 11:00:27 2002

On Wed, 18 Dec 2002, Fred Cisin (XenoSoft) wrote:

> > > And it's usually NOT a good idea to put your LAST boot disk into the
> > > drive! Although normally not a problem with most "normal" drives, there
> > > have been SOME (most notably Apple ][) that were capable of malfuntioning
> > > in ways that would cause them to erase/wipe/damage/ diskettes even when
> > > write-protected!
> > > What an amazing feature!
>
> On Wed, 18 Dec 2002, Tony Duell wrote:
> > _Any_ drive if malfucntioning could have write-gate stuck on and also
> > ignore the write protect line. After all, those signals are combined in
> > the logic circuitry somehow, and those gates could malfunction.
>
> Ooops!
> I meant to say that on the Apple ][ a malfunctiong disk controller could
> override write protect, even on a non-malfunctioning drive. THAT is the
> special unique feature.

IBM PS/2's usually read and write low-density disks high-density.

Peace... Sridhar
Received on Thu Dec 19 2002 - 11:00:27 GMT

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