Hi, Something interesting! Now I remember where I took my information from: Undocumented DOS, the times of NT4 came later, I guess ;-))
Aitor > On Wed, 2002-12-04 at 10:34, Aitor Santamaria Merino wrote: > > > And I'll admit that I don't know much of the internal structure of NT, > > > but I'm pretty sure that at least until 4.0, you could have device > > > drivers that would run in kernel mode, which would be indicative of a > > > monolithic kernel. Perhaps you misunderstood what I meant? (Just > > > asking 'cause I know that under the best circumstances I can be > > > cryptic sometimes, lol). > > > > No, but I believed that drivers in WinNT run in usermode (ring3) whereas > > in VMM they run at ring0, or at least, they have IOPL0. > > Windows NT 3.1 through 3.51 ran drivers in user mode, Windows NT 4.0 and > later run drivers in ring 0 for performance reasons. Microsoft used to > beat OS/2 up over the fact that OS/2 2.0 the drivers ran in ring 0 and > so could crash the kernel, but they switched when as a server 0S/2 out > performed them. > > NT was originally headed up by the guy who headed development VMS for > Digital Equipment Corporation, so there is some similarity there. > > Anyway I've had enough of this thread. > > Regards, > Paul _____________________________________________________________________ Horas ilimitadas para leer y enviar correos con Tarifa Plana Wanadoo �� desde las 3 de la tarde!! Compru�balo en http://www.wanadoo.es/acceso-internet ---------- list options/archives/etc.: http://www.topica.com/lists/fd-dev unsubscribe: send blank email to: [EMAIL PROTECTED] ==^^=============================================================== This email was sent to: [email protected] EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Rv5.bbRv4l.YXJjaGl2 Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^^===============================================================
