What does the title bar of a document window display?

The title bar of a document window primarily displays the active document's name. This feature allows users to quickly identify which document they are currently working on, especially when multiple documents or applications are open at the same time. The document name is often accompanied by the application's name, providing clarity about the specific software being used (e.g., Microsoft Word).

In contrast, while the title bar may provide access to menu options, this is not its primary function or focus. Formatting tools are typically found in other parts of the application, such as ribbons or toolbars, and the current date and time are generally not displayed in the title bar but might be available in the system tray or taskbar. Thus, the title bar serves as an important navigational aid, primarily by showing the user what document is currently open for editing.