Hierarchical menu bar system with dynamic graphics and text windows

A data processing system for hierarchical access to a multilevel application comprising:

• display screen controller for selective and programmed control of a two-dimensional screen display;
• pointing input device for entering input events by the user, controlling a displayed cursor, and comprising a button;
• a single display means for subdividing the display screen into a single simultaneous presentation composing a primary menu bar, a secondary menu bar, a tertiary menu bar, a graphics window, and a text window, wherein the primary menu bar contains a single menu item and the secondary and tertiary menu bars contain a plurality of menu items containing a label and selectable by the displayed cursor, wherein each menu bar is subdivided between the menu items, wherein primary menu bar provides a single subject menu item, wherein the secondary menu bar provides menu items corresponding to the primary categorical item with increasing level of detail, wherein the tertiary menu bar provides menu items corresponding to the secondary display bar with increasing level of detail in response to selecting a secondary menu item;
• default screen display means for initially displaying blank data in graphics window, text window, and the tertiary bar until selection of a menu item;
• secondary menu item display coding regimen means for displaying differing and distinct colors and patterns in the secondary menu items;
• secondary bar position determination means for determining the cursor located over a secondary menu item;
• tertiary menu bar accessing means for accessing tertiary menu items in response to the cursor located over a secondary menu bar item;
• tertiary menu item display coding regimen means for displaying the distinct color and pattern in the tertiary menu items corresponding to the selected secondary menu item;
• highlighting means for highlighting the tertiary menu item in response to a cursor located over a tertiary menu item;
• activation means for activating the button on the cursor input device after highlighting a menu item;
• memory for storing data files containing data for display in the graphics window and text window;
• graphics window for displaying graphics, image and video data corresponding to an arbitrarily selected menu item in one of the bars and corresponding to the level of detail of the menu item;
• text window for displaying text corresponding to an arbitrarily selected menu item in one of bars and corresponding to the level of detail of the selected menu item, wherein multiple pages may be scrolled;
• and
• tertiary menu bar replacement means for replacing the tertiary menu items in response to retreating to the secondary menu bar and selecting a different secondary menu bar item.