02-02-Colossus-ok.png Hedy LamarrThumbnails02-00 edithclarke2-okHedy LamarrThumbnails02-00 edithclarke2-okHedy LamarrThumbnails02-00 edithclarke2-ok
A Colossus Mark 2 computer being operated by Wrens. The slanted control panel on the left was used to set the "pin" (or "cam") patterns of the Lorenz. The "bedstead" paper tape transport is on the right.

https://en.wikipedia.org/wiki/Colossus_computer

https://en.wikipedia.org/wiki/Women%27s_Royal_Naval_Service