In 2005 I became Professor Emeritus. Previously, I held the ERA Land-Grant Chair in History of Technology and was Professor of Computer Science and Director of the Charles Babbage Institute. An historian of science and technology, my research interests include the relations among science, technology, and industry; the federal government's role in stimulating scientific and technological development; history of information processing; and the contexts for American technological development in the 19th and 20th centuries. In several projects directed toward the enhancement of documentary materials for research in history of science and technology, I addressed a number of issues related to sources for historical study: theme-related archival development (history of electronics, history of computing); the nature of resources for historical studies (archives and manuscripts, business records, oral history); and historical research on topics in science and technology and on the way their results are used in society. Currently, I am preparing a study of computation in lunar prediction theory from the 17th to the 20th centuries.
Computers and Commerce: A Study of Technology and Management at Eckert-Mauchly Computer Company, Engineering Research Associates, and Remington Rand, 1946-1957 (MIT Press, 2005).
Transforming Computer Technology: Information Processing for the Pentagon, 1962-1986. With Judy E. O'Neill (Johns Hopkins University Press, 1996).
"Table making in Astronomy." Pp. 176-207 in The History of Mathematical Tables, Martin Campbell-Kelly et al. eds. (Oxford: Oxford University Press, 2003).
"The Shifting Interests of the United States Government in the Development and Diffusion of Information Technology since 1943." in Information Technology Policy: Global Perspectives, ed. Richard Coopey (Oxford University Press, 2004).