It uses the same type of 3 paned window that the Mail reader uses. Your existing newsrc file is compatible with the new news interface. Instead of Getting New Mail, you can click on the newsgroup to bring up the list of articles and see the new ones that have arrived. Frames are a way of specifying multiple, independent, scrollable regions, or cells, within a display window. Each frame cell can contain a seperate HTML document.
Users can scroll and resize frame cells, at the choice of the frame creator.
Cells can also be given NAME values, so they can be targetted by links in other documents, such as other cells within the same frame. These features provide a powerful new way of presenting documents. Browser windows can now have names associated with them. Links in any window can refer to another window by name. When you click on the link, the document you asked for will appear in that named window.