Items in the Catalog tree view
The following are some of the items commonly shown in the Catalog tree:
Folders—Connections to workspaces holding datasets and ArcGIS documents
File and personal geodatabases—A folder of dataset files or an Access .mdb file
Database connections—Database and ArcSDE geodatabase connections
Address locators—Address geocoding files used in ArcGIS
GIS servers—A list of the ArcGIS Servers that can be managed with ArcCatalog
Toolboxes—Geoprocessing tools used in ArcGIS
Python scripts—Files containing geoprocessing scripts that automate work or perform modeling
Styles—Contains map symbols such as marker (point) symbols, line symbols, pattern fill symbols (for polygons), and text symbols used for map labels
You can work with the Catalog tree to make new connections, add new items (such as datasets), remove items, copy items, rename them, and so on.