OpenBSD UNIX, 20–21 OpenLook window manager, 46, 47 OpenOffice.org software suite, 5, 151 Opera Web browser, 263, 272. See also Web browsers options of commands, 79 O’Reilly (UNIX in a Nutshell), 360 OSF (Open Software Foundation) CDE, 45, 46–47, 59–66, 200 Common Open Software Environment, 45 founding, 21 FSF versus, 23 Motif Window Manager (MWM), 46, 47 OSF/1 UNIX, 21 OSF/1 UNIX, 21 outbound mail server, 254 Outlook Express (Microsoft), 259 ownership, 86–90