In a portable programmable memory device operatively insertable into a receiving computer controlled display system, a computer program for controlling access to data files in said memory device by designated receiving computer controlled display system comprising:
- means, responsive to said insertion of said memory device, for recognizing the computer controlled display system inserted into;
- means, responsive to said recognition of said computer controlled display system, for enabling the computer controlled display system to selectively access any data file in a predetermined set of data files in said memory device;
- and
- means, responsive to said recognition of said computer controlled display system, for displaying a prompting dialog including a set of selectable objects each representing a corresponding data file in said predetermined set of data files.