

Some resource types are available to many or all programs (e.g. there's a Preferences folder, a Caches folder, an Application Support folder, etc) with files/subfolders per application (or system component, or whatever). Now, as for the files inside the various library folders: Most of them are organized by type (e.g.

In theory, you shouldn't change anything in here. The system library, /System/Library, stores the base settings, resources, etc that come with OS X.The network library, /Network/Library would store settings shared by all computers in a network domain - if a network domain admin set one up, which nobody does anymore.BTW, I call this the "local" library, because in NextStep it was /Local/Library, but you'll see all sorts of other names for it, such as the root library, computer library. The local library, /Library, stores computer-wide settings etc.

The user library, ~/Library, stores per-user settings etc.The library folders store settings, resources, and support files.
