https://www.theguardian.com/careers/2017/aug/10/how-the-tech-industry-wrote-women-out-of-history

From the second world war to the 1960s, women were a critical part of the computing sector. Would tech culture today be less sexist if they hadn’t been sidelined?

Sadie the typist and Susie her computer: sophisticated but cheap. That’s how the duo are billed when they appear in 1960s adverts to promote a now defunct UK computer company. Using young, attractive women to advertise computers was a common ploy in Britain at the time, when male managers, uninitiated in the complexities of this new technology, viewed the machines as intimidating and opaque.