Advertisement for magnetic drum memory units. Electronics Magazine, April 1953. Reproduced in Ceruzzi, A History of Modern Computing, p. 39

Bernard Dionysius Geoghegan is a media theorist and historian of technology. He works as a Wissenchaftlicher Mitarbeiter at the Institut für Kulturwissenschaft at the Humboldt-Universität zu Berlin, as part of a program funded by the German Research Foundation. In 2012 he received dual-Ph.D. (cotutelle) degree from the Fakultät Medien of Bauhaus-Universität Weimar and the Screen Cultures program of Northwestern University. His research interests include digital media, historical epistemology, visual culture studies,  software studies, Kulturtechnik, and the history of electrical engineering. Bernard has held posts and fellowships at the American University of Paris, Harvard University, MIT, the Pompidou Center, Northwestern University, and the Children's Media Project. His essays appear in journals including Critical Inquiry, The IEEE Annals on the History of Computing, and Interaction Studies. He may be found online at Twitter, iTunes, or Google+ and reached by email at bernard.geoghegan@hu-berlin.de. His CV is for download here.