What is the difference between a content area and a course tool?

From BbWiki

Content Areas versus Course Tools

Your Control Panel has a section called Content Areas and another section called Course Tools. If you wish to take advantage of many of Blackboard's features, it helps to understand the difference between these Blackboard terms.

Content Area

Content areas allow you to organize and distribute text, documents, images, sound or video to your students. Each content area has a name which appears as an option in your course's Control Panel, and a link in your course's navigation menu.

The Blackboard support team on your campus created default content items in your course shell. Whether these items are named Syllabus or Course Documents or something else, they work the same. You add content by clicking on the named item in the Content Area section of your Control Panel, and students access it via the same named link in the navigation menu.

Tools Area

The tools area provides access to Blackboards programmed features, such as the discussion board, collaboration (Blackboards chat tool), electronic drop box (for exchanging files with students, and between students), student grade book (for posting student grades), and group area (creating a space for group projects). Although you can give a tool any name you like for the navigation menu (which your students see), Blackboard knows the tool by its standard name. For example, if you teach spanish you might name a discussion board, "discusión." Students will see "discusión" in the navigation menu, but you will see "Discussion Board" in the Tools Area of your Control Panel.