<A HREF="http://www.cs.vu.nl/~ast/">Andrew S. Tanenbaum</A>, a *(person), professor of Computer Science, author of _(Minix) (_(Unix)-like) and _(Amoeba) _(OS)es.

Of historical interest, from O'Reilly Online Catalog, _("Open Sources: Voices from the Open Source Revolution" | http://www.oreilly.com/catalog/opensources/):

_("The Tanenbaum-Torvalds Debate" | http://www.oreilly.com/catalog/opensources/book/appa.html)

Of course, with respect to _(microkernel) <strong>vs</strong> monolithic _(kernel) systems, a principal theme in this debate, from the point of view of Tunes they are both wrong (see _(no-kernel)).