Under a series of pseudonyms, Will F. Jenkins' science fiction had been regularly appearing since the 1920s. In the March 1946 issue of Astounding Science Fiction, Jenkins publishes A Logic Named Joe, a short story detailing a world where computers, called Logics, were interconnected into a massive, worldwide network. One such Logic begins to malfunction, giving out secret information about disallowed topics. Almost fifty years prior to the invention of the Internet, A Logic Named Joe contains one of the most prescient views of the capabilities of computers in a network.
An inspiring summer school on computing at the University of Pennsylvania´s Moore School of Electrical Engineering stimulates construction of stored-program computers at universities and research institutions in the US, France, the UK, and Germany. Among the lecturers were early computer designers like John von Neumann, Howard Aiken, J. Presper Eckert and John Mauchly, as well as mathematicians including Derrick Lehmer, George Stibitz, and Douglas Hartree. Students included future computing pioneers such as Maurice Wilkes, Claude Shannon, David Rees, and Jay Forrester. This free, public set of lectures inspired the EDSAC, BINAC, and, later, IAS machine clones like the AVIDAC.
Started in 1943, the ENIAC computing system was built by John Mauchly and J. Presper Eckert at the Moore School of Electrical Engineering of the University of Pennsylvania. Because of its electronic, as opposed to electromechanical, technology, it is over 1,000 times faster than any previous computer. ENIAC used plugboards and switches for programming, occupied more than 1,000 square feet, used about 18,000 vacuum tubes and weighed 30 tons. It was believed that ENIAC had done more calculation over the ten years it was in operation than all of humanity had up until that time.