PROVING GROUND

A group biography of the women who “pioneered ways to communicate” with “the mainframe computers that dominated computer history in the 1940s, ’50s, and ’60s.”

Kleiman, who teaches internet law at American University Washington College of Law, was inspired to write this book after discovering a mysterious black-and-white photograph in Harvard’s Lamont Library. During her subsequent research and interviews, she learned the story of the six women who helped program the first modern computer, a story that was missing from the history of the Electronic Numerical Integrator and Computer. “It is up to oral histories to fill in the gaps and share the important stories and lives left out,” she writes. In an engaging narrative in the vein of Hidden Figures, Kleiman shares the background of each of these women as well as how they became a part of a secret U.S. Army project. During World War II, the Army hoped to increase the accuracy of its artillery, and the desktop calculators used to calculate missile trajectories were too slow. “On average,” writes the author, “it took about thirty hours to calculate a trajectory using a desktop calculator.” As the Army’s arsenal increased, it required new firing tables and needed faster calculations. Many believed the ENIAC was the answer. Due to their educational backgrounds and experience calculating missile trajectories using the standard method, these women were asked to participate in the programming of the ENIAC. Because many men were in battle, “the war greatly expanded opportunities for college-educated women with backgrounds in engineering, science, and math.” As the author shows, despite their skills, the women still faced discrimination. In fact, in attempting to tell their stories, Kleiman received “discriminatory pushback” herself, including being accused of writing “revisionist history.” She persisted, however, and achieved her goal of restoring these women to their rightful place in computer history. The author includes a helpful five-page cast of characters.

An important and inspiring little-known narrative in modern computing history.