KAY McNULTY MAUCHLY ANTONELLI During the early 1940's, Kay McNulty, a recent math graduate from Chestnut Hill College, was employed along with about 75 other young female mathematicians as a "computer" by the University of Pennsylvania's Moore School of Engineering. These "computers" were responsible for making calculations for tables of firing and bombing trajectories, as part of the war effort. They prepared a firing table for each gun, involving up to 1,800 simple trajectories. To hand-compute just one of these trajectories took 30 or 40 hours of sitting at a desk with paper and a calculator.The need to perform the calculations more quickly prompted the development of the ENIAC, the world's first electronic digital computer, in 1946. One of the creators of the ENIAC was xxxx Mauchly, Kay's first husband.