System directory structure in Mac

Below is list of directories and respective details as generally found in /private/ directory of Mac.

Feel free to comment below if you find new directories (name and details)

/System/:

  • /System/Library/
    • /System/Library/AWD/
    • /System/Library/Accessibility/
    • /System/Library/AccessibilityBundles/
    • /System/Library/AccessoryUpdaterBundles/
    • /System/Library/Accounts/
    • /System/Library/Address Book Plug-Ins/
    • /System/Library/AssetCache/
    • /System/Library/AssetTypeDescriptors/
    • /System/Library/Assets/
    • /System/Library/AssetsV2/
    • /System/Library/Assistant/
    • /System/Library/Audio/
    • /System/Library/Automator/
    • /System/Library/BridgeSupport/
    • /System/Library/CacheDelete/
    • /System/Library/Caches/
    • /System/Library/ColorSync/
    • /System/Library/Colors/
    • /System/Library/Components/
    • /System/Library/Compositions/
    • /System/Library/ConfigurationProfiles/
    • /System/Library/CoreAccessories/
    • /System/Library/CoreImage/
    • /System/Library/CoreServices/
    • /System/Library/CryptoTokenKit/
    • /System/Library/DTDs/
    • /System/Library/DefaultsConfigurations/
    • /System/Library/DifferentialPrivacy/
    • /System/Library/DirectoryServices/
    • /System/Library/Displays/
    • /System/Library/DistributedEvaluation/
    • /System/Library/DuetActivityScheduler/
    • /System/Library/DuetKnowledgeBase/
    • /System/Library/DuetKnowledgeCollector/
    • /System/Library/Extensions/
    • /System/Library/Filesystems/
    • /System/Library/Filters/
    • /System/Library/Fonts/
    • /System/Library/Frameworks/
    • /System/Library/Graphics/
    • /System/Library/HIDPlugins/
    • /System/Library/IdentityServices/
    • /System/Library/Image Capture/
    • /System/Library/Input Methods/
    • /System/Library/InternetAccounts/
    • /System/Library/Java/
    • /System/Library/KerberosPlugins/
    • /System/Library/Kernels/
    • /System/Library/Keyboard Layouts/
    • /System/Library/Keychain/
    • /System/Library/Keychains/
    • /System/Library/LASecureIO/
    • /System/Library/LaunchAgents/
    • /System/Library/LaunchDaemons/
    • /System/Library/LinguisticData/
    • /System/Library/LocationBundles/
    • /System/Library/LoginPlugins/
    • /System/Library/Messages/
    • /System/Library/Metadata/
    • /System/Library/MonitorPanels/
    • /System/Library/MultiversePlugins/
    • /System/Library/NetworkServiceProxy/
    • /System/Library/OnBoardingBundles/
    • /System/Library/OpenDirectory/
    • /System/Library/OpenSSL/
    • /System/Library/PairedSyncServices/
    • /System/Library/Password Server Filters/
    • /System/Library/Perl/
    • /System/Library/PreferenceBundles/
    • /System/Library/PreferencePanes/
    • /System/Library/Preferences/
    • /System/Library/PreferencesSyncBundles/
    • /System/Library/PreinstalledAssetsV2/
    • /System/Library/PrelinkedKernels/
    • /System/Library/Printers/
    • /System/Library/PrivateFrameworks/
    • /System/Library/QuickLook/
    • /System/Library/QuickTime/
    • /System/Library/Receipts/
    • /System/Library/Recents/
    • /System/Library/Sandbox/
    • /System/Library/Screen Savers/
    • /System/Library/ScreenReader/
    • /System/Library/Script Editor Plugins/
    • /System/Library/ScriptingAdditions/
    • /System/Library/ScriptingDefinitions/
    • /System/Library/Security/
    • /System/Library/Services/
    • /System/Library/Sounds/
    • /System/Library/Speech/
    • /System/Library/Spotlight/
    • /System/Library/StartupItems/
    • /System/Library/SyncServices/
    • /System/Library/SystemConfiguration/
    • /System/Library/SystemDiagnostic/
    • /System/Library/SystemProfiler/
    • /System/Library/Tcl/
    • /System/Library/TextEncodings/
    • /System/Library/TextInput/
    • /System/Library/User Template/
    • /System/Library/UserEventPlugins/
    • /System/Library/UserNotifications/
    • /System/Library/Video/
    • /System/Library/WidgetResources/
  • /System/iOSSupport/
    • /System/iOSSupport/dyld/
    • /System/iOSSupport/System/
    • /System/iOSSupport/usr/