Routines Of Substitution: John Von Neumanns Work …


Routines Of Substitution: John Von Neumanns Work On Software Development, 19451948
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This work is a historical and philosophical study of the programming work carried out by John von Neumann in the period 1945-8. At the heart of the book is an examination of a manuscript featuring the earliest known surviving example of von Neumanns coding, a routine written in 1945 to mesh two sequences of data and intended to be part of a larger program implementing the algorithm now known as mergesort. The text of the manuscript itself, along with a preliminary document describing the code he used to write this program, are reproduced as appendices. The program is approached in three chapters describing the historical background to von Neumanns work, the significance of the sorting application itself, and the development of the EDVAC, the machine for which the program was written. The subsequent chapters widen the focus again, discussing the subsequent evolution of the program and the crucial topic of subroutines, before concluding by situating von Neumanns work in a number of wider contexts. The book also offers a unifying philosophical interpretation of von Neumanns approach to coding.

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