How MAC OS x installs software

There are two ways to install software on MAC OS x:

1. Direct copy and paste, which is also the most important way, in general, MAC OS x program will be packaged into Dmg,iso. When you double-click, the system automatically hangs the disk image and displays it in the Finder. After opening you will often see a similar program-> application such an interface, it is just a background picture folder, the program dragged into the application can be. Of course, yes, the application folder is just the folder where the system defaults to the program, and you can put your program anywhere.

2. Some programs have been made to install the package, which is just like windows, the next step is OK.