
Chapter I
Introduction
Mac OS X is a departure from previous operating systems both on
mainframes and on personal computers. Its structure is thoroughly
modern~it is based on a small kernel that isolates the most critical
aspects of the operating system, and it is object oriented to a degree
that has not been seen in a mainstream operating system. Its user ex-
perience has been developed based not only on Apple's years of re-
search and development in this area, but also on the powerful
processors of today and tomorrow that can provide a rich, sophisti-
cated, and delightful user experience of greater elegance and power
than their ...