Issues at the interface (panel session): an historical trace of prompting, concurrency, signification and ease of use

Beginning with Sketchpad and continuing to Macintosh and beyond, designers and users of interactive graphics systems and applications have refined the nature of the working graphical, interface between a person and a computer. The panel will trace the changing uses of graphical symbols and icons; address the evolution of concurrency in windows, menus and task activation; examine mechanisms for gaining attention and prompting for reactions; and focus on reducing visual, physical and psychological stress via improved screen design and applied principles of graphical presentation.