books.google.co.jp - Mac OS X was released in March 2001, but many components, such as Mach and BSD, are considerably older. Understanding the design, implementation, and workings of Mac OS X requires examination of several technologies that differ in their age, origins, philosophies, and roles. Mac OS X Internals: A Systems...http://books.google.co.jp/books/about/Mac_OS_X_Internals.html?hl=ja&id=K8vUkpOXhN4C&utm_source=gb-gplus-shareMac OS X Internals
