"Mike O'Brien" <obrien@rushe.aero.org> writes: > The first version of UNIX ran on a PDP-11/20, which did > not have an MMU. It had segments, so it had memory management, although no memory protection per se. -- Perry E. Metzger perry@wasabisystems.com -- NetBSD: The right OS for your embedded design. http://www.wasabisystems.com/