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[[license text="""
Copyright © 2007 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the
terms of the GNU Free Documentation License, Version 1.2 or any later version
published by the Free Software Foundation; with no Invariant Sections, no
Front-Cover Texts, and no Back-Cover Texts.  A copy of the license is included
in the section entitled [[GNU_Free_Documentation_License|/fdl.txt]].

By contributing to this page, you agree to assign copyright for your
contribution to the Free Software Foundation.  The Free Software Foundation
promises to always use either a verbatim copying license or a free
documentation license when publishing your contribution.  We grant you back all
your rights under copyright, including the rights to copy, modify, and
redistribute your contributions.
"""]]

TCB stands for trusted computed base.  Unqualified, the trusted
computing base referrers to the set of components programs
must [[trust]] to function correctly.  On multiserver systems,
it is sometimes more appropriate to speak of the trusted computing
base of a particular program: as components are much less connected,
one program's trusted computing base may be significantly different
from another's.