>Definitely see this. The 1970s hardware is archaic, but the concept is still relevant.

Indeed. There is nothing in the film that contradicts the notion of Colossus being a very, very large LLM.

Although I think the film is even better than the book by D. F. Jones, only the latter mentions how, despite being created specifically for US national defense, Colossus is also fed unrelated data including Shakespeare's sonnets, because its creators do not know if it could be important.