Proving Ground Kathy Kleiman by Kathy Kleiman instant download after payment.

For fans of Code Girls and Hidden Figures, PROVING GROUND is the untold, WWII-era story of the six American women who programmed the world's first modern computer.
  After the end of World War II, top-secret research continued across the United States, and scientists, mathematicians and programmers alike rushed to complete their confidential assignments before time ran out. Among them were six pioneering women, tasked with figuring out how to program the world’s first digital computer — a machine built to calculate a single ballistic trajectory in ten seconds rather than 40 hours by human hand — even though there was no manuals or coding language in existence. They battled against not only this difficult task, but also the men who sought to steal credit away from them. Because of these sexist efforts, they were soon lost to history.
 
These women are brought back to life, and back into the historical record, through the...