 In several accounts, Turing has been identified not just as the father of computer science but as the father of the modern computer. The classical story for this more or less goes as follows: the blueprint of the modern computer can be found in von Neumann’s EDVAC design and today classical computers are usually described as having a so-called von Neumann architecture. One fundamental idea of the EDVAC design is the so-called stored-program idea. Roughly speaking this means the storage of instructions and data in the same memory allowing the manipulation of programs as data. There are good reasons for assuming that von Neumann knew the main results of Turing’s paper (Davis 1988). Thus, one could argue that the stored-program concept originates in Turing’s notion of the universal Turing machine and, singling this out as the defining feature of the modern computer, some might claim that Turing is the father of the modern computer. Another related argument is that Turing was the first who “captured” the idea of a general-purpose machine through his notion of the universal machine and that in this sense he also “invented” the modern computer (Copeland &amp; Proudfoot 2011). This argument is then strengthened by the fact that Turing was also involved with the construction of an important class of computing devices (the Bombe) used for decrypting the German Enigma code and later proposed the design of the ACE (Automatic Computing Engine) which was explicitly identified as a kind of physical realization of the universal machine by Turing himself: