When you double-click a file on your Mac, the operating system will automatically open the file using the program assigned to that type of file. It is possible, though, to open the file using ...

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may ...

Every Mac OS X computer includes a local Open Directory database — referred to as a domain — that stores information about local user accounts.

Every Mac OS X computer includes a local Open Directory database—referred to as a domain—that stores information about local user accounts.

Even though you can't see them, invisible files are critical to the operation of your Mac. For example, Apple typically makes certain files invisible to reduce the chance that the files are ...