Because of its Unix heritage, Mac OS X is a true multi-user operating system from the ground up. Yet some people have used Mac OS X for many months without fully realizing what this means -- as the ...

We have posted the second installment of Ted Landau's guide to Inivisble Files in Mac OS X. An excerpt: "The most common methods that OS X uses to determine if a file or folder should be invisible of ...

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

When you double-click on a file in Windows, it will automatically open a default program that is configured to manage these types of files. It is common, though, want or need to use a different ...