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Lot 1067

EDVAC: 1946 PROGRESS REPORT
Progress Report on the EDVAC (Electronic Discrete Variable Computer). Philadelphia: University of Pennsylvania, Moore School of Electrical Engineering, 1946.

25 October 2022, 14:00 EDT
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EDVAC: 1946 PROGRESS REPORT

Progress Report on the EDVAC (Electronic Discrete Variable Computer). Philadelphia: University of Pennsylvania, Moore School of Electrical Engineering, 1946.
2 volumes. 4to. Publisher's quarter cloth and printed wrappers. Spines perished, overlaid with transparent tape, contents loose, wrappers heavily rubbed, numerous ink stamps and markings on wrappers and preliminary pages, including "CONFIDENTIAL" stamps lined out, printed paper labels on both front wrappers reading "THIS REPORT IS NOT TO BE REMOVED FROM THE PREMISES OF THE COMPUTING LABORATORY" applied with transparent tape.
Provenance: Martin Weik, Jr. (stamp on front wrapper of each volume); Winifred S. Jonas, ENIAC/EDVAC/ORDVAC programmer at BRL.

J. Presper Eckert and John Mauchly, designers of the ENIAC, began plans for a second machine even before the first was completed. "In contrast to ENIAC, the next computer would be of a simpler, more elegant design, with the memory storage Eckert had already drawn up. It would have an internal memory for 2,000 ten-digit numbers, compared to the 20 ten-digit numbers in ENIAC. And it would have just one-tenth as much equipment as ENIAC" (McCartney pp 112-113). Although John von Neumann assisted with the logic planning of the EDVAC, much of the design had already been completed by the time he arrived at University of Pennsylvania's Moore School.
Von Neumann decided to collect his ideas for the EDVAC while he was called away on a 1945 trip to Los Alamos as part of the Manhattan Project. Herman Goldstine typed up Von Neumann's work and issued the 101-page report as First Draft of a Report on the EDVAC. "It was a masterful piece of work that poetically equated the structure of the computer with the structure of the human brain ... it was in essence a blueprint for constructing a computer that could store a program in its internal memory and run calculations at very fast speeds, even though it was short on engineering specifics. Von Neumann was listed as the sole author because the report was only a first draft, according to Goldstine" (MacCartney p 118). Von Neumann also failed to credit Eckert and Mauchly and as this wasn't a classified work it was distributed to academics in the field and passed around fairly widely.
Eckert and Mauchly attempted to clarify their role by publishing in September 30, 1945 Automatic High-Speed Computing. A Progress Report on the EDVAC but it was deemed classified and not widely seen. By the time the above 2-volume work was published, the ground had already been laid for Von Neumann architecture to become a common term for a stored program computer and Eckert and Mauchly had left the Moore School to start the Eckert-Mauchley Computer Corporation. McCartney, Scott. ENIAC: The Triumphs and Tragedies of the World's First Computer. NY: [1999].

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