Not quite sure that the Zuze counts other wise you could claim that colossus was "sold" to HMG by the GPO.
I seriously doubt that in 44 there would be any non governmental buyers for computers in Germany.
I seriously doubt that in 44 there would be any non governmental buyers for computers in Germany.
Not sure the Colossus was a commercialy available computer everyone could buy in '44? The Z3 was "sold" in '43 to the GAC - but was not turing complete in '43.
[1] My personal believe is it's those geniuses not countries that did the invention, it's often a team effort, people are standing on the shoulders of giants and it's always difficult to define "first" plus at the same time irrelevant.