Frances Spence

Frances Spence was an American mathematician and one of the original six programmers of the groundbreaking ENIAC, the first general-purpose electronic digital computer. Her work, alongside other pioneering women like Kathleen Antonelli and Jean Bartik, was critical to the success of early computing during and after World War II. Despite their foundational contributions, Spence and her colleagues were not publicly recognized for decades, with their story becoming a key part of the recovered history of women in computer science.

Early life and education

Frances Bilas was born in Philadelphia and demonstrated an early aptitude for mathematics. She attended the Philadelphia High School for Girls, a prestigious magnet school known for its rigorous academic curriculum. In 1942, she earned a Bachelor of Arts degree in mathematics from Chestnut Hill College, where she also minored in physics. During her studies, she was introduced to the IBM 601 electromechanical calculator, gaining early hands-on experience with computing machinery. Her academic performance attracted the attention of the United States Army, which was recruiting women mathematicians for war-related computational work at the Moore School of Electrical Engineering.

Career and ENIAC programming

In 1945, Spence was hired as a "computer"—a human calculator—to perform ballistics trajectory calculations for the Ballistic Research Laboratory at the Aberdeen Proving Ground in Maryland. She worked under the direction of supervisors like John Mauchly and J. Presper Eckert at the Moore School of Electrical Engineering. Selected to work on the top-secret ENIAC project, her role evolved from performing manual calculations to programming the machine itself. This involved mastering the machine's logical architecture and physically setting thousands of switches and cables on the enormous ENIAC panels to solve complex differential equations. Her work was vital for producing artillery firing tables, directly supporting the Allied war effort. After the war, she continued her work on the ENIAC, contributing to early scientific computations, including problems for the Los Alamos scientists working on the Manhattan Project.

Legacy and recognition

For many years, the programming contributions of Spence and her colleagues were overlooked, often attributed to the hardware engineers like J. Presper Eckert. The tide began to turn in the 1980s through the efforts of historians like Kathy Kleiman and the publication of works such as "ENIAC: The Triumphs and Tragedies of the World's First Computer". In 1997, all six original programmers were inducted into the Women in Technology International Hall of Fame. Their story has since been featured in documentaries like "The Computers" and has become a central narrative in discussions about the hidden figures of computer science. Spence's career, though she left the workforce in the 1950s to raise a family, exemplifies the critical yet often unheralded role women played in the dawn of the Information Age. Her legacy is honored in institutions like the Computer History Museum and continues to inspire initiatives aimed at increasing diversity in STEM fields.

Category:American computer programmers Category:ENIAC programmers Category:1922 births Category:2012 deaths