- A computer architecture based on a 1945 description by John von Neumann and others in the First Draft of a Report on the EDVAC. The document features a design architecture for an electronic digital computer with a processing unit with both an arithmetic logic unit and processor registers, a control unit that includes an instruction register and a program counter, memory that stores data and instructions, external mass storage, and input and output mechanisms. The term “von Neumann architecture” has evolved to refer to any stored-program computer in which an instruction fetch and a data operation cannot occur at the same time (since they share a common bus), which is in turn referred to as the von Neumann bottleneck. ← Wikipedia
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