Sharp MZ-80B boot disk - test-drb@ccmp.vtda.org

18 Dec 2002

In a message dated 12/18/2002 7:53:39 PM Eastern Standard Time, 
cisin(a)xenosoft.com writes:

<< > > 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.
...
 > I had that happen once! Ruined a number of
my floppies until I finally 
figured it out. Bought one from Jameco for either $50 or $80 way back in the 
late 1980s. 

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