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== History ==
The first documented computer architecture was in the correspondence between [[Charles Babbage]] and [[Ada Lovelace]], describing the [[analytical engine]]. While building the computer [[Z1 (computer)|Z1]] in 1936, [[Konrad Zuse]] described in two patent applications for his future projects that machine instructions could be stored in the same storage used for data, i.e., the [[Stored-program computer|stored-program]] concept.<ref>{{citation |title=Electronic Digital Computers |journal=Nature |date=25 September 1948 |volume=162 |page=487
* [[John von Neumann]]'s 1945 paper, [[First Draft of a Report on the EDVAC]], which described an organization of logical elements;<ref>{{Cite book|title=First Draft of a Report on the EDVAC|last=Neumann|first=John|year=1945|pages=9}}</ref> and
*[[Alan M. Turing|Alan Turing]]'s more detailed ''Proposed Electronic Calculator'' for the [[Automatic Computing Engine]], also 1945 and which cited [[John von Neumann]]'s paper.<ref>Reproduced in B. J. Copeland (Ed.), "Alan Turing's Automatic Computing Engine", Oxford University Press, 2005, pp. 369-454.</ref>
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