The Design and Implementation of the FreeBSD Operating System 2nd pdf下载

The Design and Implementation of the FreeBSD Operating System (2nd Edition) The goal of the FreeBSD project is to provide software that may be used for any purpose and without strings attached. Many of the developers have a significant investment in the code (and project) and certainly do not mind a little financial compensation occasionally, but they certainly do not insist on it. They believe that their first and foremost mission is to provide code to any and all comers, for whatever purpose, so that the code gets the widest possible use and provides the greatest possible benefit