Final answer:
In the beginning of the movie, Katherine, Mary, and Dorothy work for NASA as Computers. These women were known as the Harvard Computers, who were educated young women hired as assistants for a lower salary than men.
Step-by-step explanation:
In the beginning of the movie, Katherine, Mary, and Dorothy work for NASA as Computers. In the late 1800s, the director of the Harvard Observatory discovered that educated young women could be hired as assistants for a lower salary compared to men, and these women became known as the Harvard Computers. This was a time when women were undervalued and exploited in many fields, including astronomy.