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<TITLE>RE: [Dailydave] luckily, there are no dumb questions</TITLE>
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<P><FONT SIZE=2>If memory servers me right, Alpha only supported to "rings" and therefore only 2 was used on Intel as well.<BR>
<BR>
/andreas<BR>
<BR>
<BR>
-----Original Message-----<BR>
From: dailydave-bounces@lists.immunitysec.com on behalf of dan@geer.org<BR>
Sent: Thu 6/7/2007 12:30 PM<BR>
To: dailydave@lists.immunitysec.com<BR>
Subject: [Dailydave] luckily, there are no dumb questions<BR>
<BR>
<BR>
Luckily, there are no dumb questions or this would<BR>
likely be one.<BR>
<BR>
How is it so that MS Windows uses only Rings 0 & 3?<BR>
An engineering answer, a marketing answer, and/or<BR>
an historical answer would be welcome. Don't know<BR>
why I never thought to ask before, but I'm asking<BR>
now. (And if I'm really wrong, please tell me what<BR>
uses 1|2.)<BR>
<BR>
Bemusedly,<BR>
<BR>
--dan<BR>
<BR>
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