To me, Desktop Publishing consists of providing products that can be stored on, viewed on, heard from, or printed by a computer. My exposure to various operating systems including UNIX, IBM Mainframe, and Windows (even back to the good ole days of CPM in Commodore 64 and Commodore 128 personal computers) plus my experience with a tremendous variety of software to perform manifold tasks has provided me with a solid background to develop and edit more file types than I would not want to attempt to list. Desktop Publishing activities include the following:

Develop Web Sites
Create and Edit Animation
Import, Export, or Link Data
Automate and Link Documents
Convert and Format Documents
Perform Technical Writing and Editing
Reduce Memory in Current Documents
Create and Standardize Documentation
Digitize and Edit Photographs, Audio, and Video