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From: rjwalsh@unix2.tcd.ie (Robert Walsh)
Newsgroups: comp.sys.atari.st.tech
Subject: How does TOS know a disk has been changed (physically)
Message-ID: <rjwalsh.668898307@unix2.tcd.ie>
Date: 13 Mar 91 21:05:07 GMT
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Organization: Trinity College, Dublin
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	How does TOS know that the disk in a particular drive has been changed?
i.e. when I do a 'dir' command in STOS, the disk whirrs. When I repeat the
command, no disk access is performed. However, popping the disk out and in
again, followed by a 'dir' causes the disk to be accessed.
	Does the disk controller send an interrupt when the eject button for a
particular drive is pressed?
	Please email any replys. Thanks.

-- Robert Walsh (rjwalsh@unix2.tcd.ie)