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From: mldemsey@cs.arizona.edu (Matthew L. Demsey)
Newsgroups: comp.sys.mac.programmer
Subject: How does the system know one disk from another?
Summary: Text references?
Keywords: Baffling, hidden info storage...
Message-ID: <403@caslon.cs.arizona.edu>
Date: 19 Sep 90 05:38:10 GMT
References: <lester.653695211@cica>
Distribution: comp
Organization: U of Arizona CS Dept, Tucson
Lines: 16


   How exactly can a program, the system, etc. tell the difference between
two floppies.  If I take floppy (ok, firm) disk A and call it 'Blah', an d
insert it into my only internal firm drive, then hit shift-cmd-1 and proceed
to insert firm disk B, also named 'Blah' - the system will create
a new icon on the desktop and leave disk A's icon greyed...  and when
I insert A back in, it highlights A's original icon... So the question is:
           What information is it reading to discern the difference,
           Where is this stored,
       and Which textual references can I find on this?
 
(Inside Apple, etc?)...

Thanks to all in advance...

Loki.  (mldemsey@caslon.cs.arizona.edu)