Application Installation
Using DMG archives simplifies the process of downloading applications. When a user has a DMG containing an application displayed in Finder, there are two common ways of installing the application. The easiest way is to just drag the application from the DMG archive into a folder on the local hard disk, but sometimes a more complex installation process using a dedicated installer application is needed.
A dedicated installer application might be required if the application being installed has any of the following characteristics:
The application shares frameworks or resources with other applications.
The application is made up of multiple components that must be installed in different locations.
The application requires ...
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