Woodgate, H. SamC.E. Vandoni2015-09-292015-09-2919851017-4656https://doi.org/10.2312/eg.19851002This paper describes the use of Graphical Symbols (Icons) as a means of communicating operating commands between application program and users. detailed in the paper is the operational command system for a "Spread Sheet Calculator" which was &signed to be driven entirely by Graphical Symbols using a "point and activate" command method. 83 Graphical Symbols were required to operate the program and these were developed using a "graphical symbol generator". The example User experiences are also discussed.10.2312/eg.19851002