Now 1941 was the time when World War II was strongly affecting the directions of academic research as the USA geared up for research specifically directed towards the war effort. Mauchly took a training course in electronics, designed for defence purposes, at the Moore School of Electrical Engineering at the University of Pennsylvania.
Mauchly kinuha ng isang kurso sa pagsasanay electronics, dinisenyo para sa layunin ng depensa, at ang Moore School of Mechanical Engineering sa University of Pennsylvania.