<P> In 1936, Konrad Zuse also anticipated in two patent applications that machine instructions could be stored in the same storage used for data . </P> <P> Independently, J. Presper Eckert and John Mauchly, who were developing the ENIAC at the Moore School of Electrical Engineering, at the University of Pennsylvania, wrote about the stored - program concept in December 1943 . In planning a new machine, EDVAC, Eckert wrote in January 1944 that they would store data and programs in a new addressable memory device, a mercury metal delay line memory . This was the first time the construction of a practical stored - program machine was proposed . At that time, he and Mauchly were not aware of Turing's work . </P> <P> Von Neumann was involved in the Manhattan Project at the Los Alamos National Laboratory, which required huge amounts of calculation . This drew him to the ENIAC project, during the summer of 1944 . There he joined into the ongoing discussions on the design of this stored - program computer, the EDVAC . As part of that group, he wrote up a description titled First Draft of a Report on the EDVAC based on the work of Eckert and Mauchly . It was unfinished when his colleague Herman Goldstine circulated it with only von Neumann's name on it, to the consternation of Eckert and Mauchly . The paper was read by dozens of von Neumann's colleagues in America and Europe, and influenced the next round of computer designs . </P> <P> Jack Copeland considers that it is "historically inappropriate, to refer to electronic stored - program digital computers as' von Neumann machines"'. His Los Alamos colleague Stan Frankel said of von Neumann's regard for Turing's ideas: </P>

Draw a diagram of memory of computer with explanation