System Preferences is the application for OS X that allows you to modify various system settings. Located in /Applications, the application is organized into different preference panes.

System Preferences will access preference panes in three default locations:

  • /System/Library/PreferencePanes — default OS X preference panes
  • /Library/PreferencePanes — user-installed preference panes installed globally
  • ~/Library/PreferencePanes — user-installed preference panes just for a single user
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