photographing interactive slideshows for their AVS-10 instructional device"; 1968-1969), the University of Illinois at Chicago (an interdisciplinary staff position; 1973-1976) and Swarthmore College (visiting lecturer in computing; 1977).

Nelson also conducted research and development under the auspices of the Nelson Organization (founder and president; 1968-1972) and the Computopia Corporation (co-founder; 1977-1978). Clients of the former firm included IBM,