Colossus computing machine used to read Nazi codes at Bletchley Park, England, during World War 2, Colossus Mark 2 codebreaking computer being operated by Dorothy Du Boisson (left) and Elsie Booker (right), 1943

---

Size: 4906px × 3272px
Photo credit: © GL Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: &, 2, archival, archive, black, codebreaking, colossus, computer, computing, historic, historical, history, image, images, machine, mark, monochrome, people, person, persons, vintage, white