[chx]

Erm, no.

The first woman to get a PhD in computer science was a Wren, not a nun: Beatrice Worsley. https://en.wikipedia.org/wiki/Beatrice_Worsley of note

> When World War II ended, Worsley was the only Wren at the NRE to choose to remain in service.

She is tragically forgotten despite she wrote the first program to run on a Von Neumann architecture computer (that being the EDSAC) which you could simplify to say she wrote the first computer program as we today understand such.

Also, she got the first PhD in CS when CS wasn't even a thing yet.