To say I’m annoyed would be very much overstating it, just a (very minor) eye-roll at one small line in a generally very good article. Just the bit quoted:

currency symbols other than the $ (kind of tells you who invented computers, doesn’t it?)

So they could also be attributing it to some other country that uses $ for their currency, which is a few, but it seems most likely to be suggesting USD.

Well, it’s not really clear-cut, which is part of my point, but probably the 2 most significant people I could think of would be Babbage and Turing, both of whom were English. Definitely could make arguments about what is or isn’t considered a ‘computer’, to the point where it’s fuzzy, but regardless of how you look at it, ‘computers were invented in America’ is rather a stretch.

currency symbols other than the $ (kind of tells you who invented computers, doesn’t it?)

Who wants to tell the author that not everything was invented in the US? (And computers certainly weren’t)