The ABC computer was invented to do all the calculations that were being done by hand, related primarily to agricultural research being conducted or organized by Henry A, Wallace, IIRC — or for use in the Statistics lab. Wallace’s father was an ISU professor and a Secretary of Agriculture in the 1920s. His grandfather (IIRC) farmed near Adair in southwest Iowa, and started the popular statewide magazine Wallace’s Farmer. Henry A. Wallace started Pioneer Seed in Ankeny, that was bought out by DuPont maybe 20 years ago or so. He was also Secretary of Agriculture for FDR, later Vice-President, and ran for President himself in 1948. After that, I think he raised chickens and developed new genetic lines in upstate New York. But again, the impetus for the ABC computer was all the calculations that went into, say, measuring yield, for example, and testing for statistically significant differences, between one variety of seed versus another. Or for experimentation. I think the ABC kind of fell by the wayside when the inventor, Professor Atanasoff, who was a physics professor and consultant to the Statistics lab, went to work in Washington DC during WWII.