31.1: Invited Paper: A Touching Story: A Personal Perspective on the History of Touch Interfaces Past and Future

Touch screens have a 40+ year history. Multi-touch and some of the gestures associated with it, are over 25 years old. This paper aspires to provide some perspective on the roots of these technologies, and share some future-relevant insights from those experiences. Since the scope of the article does not permit a comprehensive survey, emphasis has been given to projects and insights that are relevant, but less-well known.