Volume 9 in the Babbage Reprint Series makes the Moore School Lectures (1946) available for the first time. Volume 9 in the Babbage Reprint Series makes the Moore School Lectures (1946) available for the first time. Delivered by such notable engineers and scientists as J.P. Eckert, J. Mauchly, H. Goldstine, A.W. Burks, and J. von Neumann at the University of Pennsylvania as a direct response to crucial new developments in the design and construction of the early stored program computer, the ENIAC, the lectures provide a comprehensive overview of the history of computing devices and digital and analog computing mechanisms; machine elements, including arithmetic circuits and the Selectron; numerical mathematical methods; and a detailed presentation of the ENIAC, the parallel type EDVAC, and the serial acoustic binary EDVAC.