Apple Lisa XENIX

[Scott Stevens]

On Sat, 5 Nov 2005 13:58:44 -0600
compoobah at valleyimplants.com wrote:

> LC[x] and Classic both use the SuperDrive/3.5HD floppy mechanism, Lisa 3.5" uses the SSDD Apple 400k (hacked up from the standard 360k so Apple wouldn't have to redo the ROMs when they dropped Twiggy). a 800k external drive can be plugged into the classic, possibly (other compact Macs take it, as does the IIcx/ci), or a non-FDHD SE, original II, or <= Mac Plus machine come standard with 800k (or 400k) drives.
> 
>  Reminder for people who don't work with Macs much - stuff gets written to disk (When a System 6 disk is put in a System 7 Mac, the desktop file is immediately recreated) without the explicit intervention of the operator. If this is done on a SuperDrive Mac, and the disk is then put back in a 400/800k Mac, it won't be able to read/mount the disk. Write protect all 800k floppies if you use them in a 1.4 MB Mac.
> 

Windows pulls crap like that as well.  My computer at work has something seriously wrong with the floppy drive where it corrupts any disk that it writes to but can read a floppy safely.  I have to copy protect disks before plugging them in the machine or they are instantly unreadable (the disks usually contain data in log files created on machines down in the lab on plain DOS machines, while the machine up in the cubicle runs W2000).  Windows 'insists' on modifying something in the directory of any disk it first encounters, having to do with 'long filenames.'  Be aware of this when putting any vintage DOS diskettes into the drive of a modern machine.

>  


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