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The EDVAC as installed in Building 328 at the Ballistic Research Laboratory. EDVAC (Electronic Discrete Variable Automatic Computer) was one of the earliest electronic computers. It was built by Moore School of Electrical Engineering at the University of Pennsylvania. [1] [2]: 626–628 Along with ORDVAC, it was a successor to the ENIAC.
The judge ruled that Herman Goldstine's June 30, 1945, dissemination of John von Neumann's First Draft of a Report on the EDVAC, a set of incomplete notes describing the logical design of the ENIAC's successor machine the EDVAC, which was being built simultaneously to the ENIAC's completion at the Moore School of Electrical Engineering at the ...
Eckert, a co-inventor of the ENIAC, discusses its development at the University of Pennsylvania's Moore School of Electrical Engineering; describes difficulties in securing patent rights for the ENIAC and the problems posed by the circulation of John von Neumann's 1945 First Draft of the Report on EDVAC, which placed the ENIAC inventions in the ...
By the spring of 1946, Eckert and Mauchly had procured a U.S. Army contract for the University of Pennsylvania and were already designing the EDVAC – the successor machine to the ENIAC – at the university's Moore School of Electrical Engineering. However, new university policies that would have forced Eckert and Mauchly to sign over ...
EDVAC, conceived in June 1945 in First Draft of a Report on the EDVAC, but not delivered until August 1949. It began actual operation (on a limited basis) in 1951. BINAC, delivered to a customer on 22 August 1949. It worked at the factory but there is disagreement about whether or not it worked satisfactorily after being delivered.
A post-war series of lectures disclosing the design of ENIAC, and a report by John von Neumann on a foreseeable successor to ENIAC, First Draft of a Report on the EDVAC, were widely distributed and were influential in the design of post-war vacuum-tube computers. Early machines which were used to tabulate punch cards could only add and subtract.
In 1996, in honor of the ENIAC's 50th anniversary, The University of Pennsylvania sponsored a project named "ENIAC-on-a-Chip", where a very small silicon computer chip measuring 7.44 mm by 5.29 mm was built with the same functionality as ENIAC. Although this 20 MHz chip was many times faster than ENIAC, it had but a fraction of the speed of its ...
Preliminary design work on the ENIAC's successor machine the EDVAC resulted in the stored program concept used in all computers today, the logical design having been promulgated in John von Neumann's First Draft of a Report on the EDVAC, a set of notes synthesized from meetings he attended at the Moore School.