Although Carbonized and Cocoa applications behave somewhat differently, their similarities are at least as great as their differences. This is especially true when it comes to the installation of applications.
Under Mac OS X, there are two basic strategies by which applications are installed:
Drag and drop Under this method, you simply drag the application files from one location to the location in which you want to install them.
Installer Some applications use an installation program to install the application and related files for you. Most applications use the standard Mac OS X Installation application as their installation mechanism.
Because Mac OS X is designed as a multiuser OS, where you install Mac OS X ...