Cannot speak for portugese language (which is the predominant one in Brazil), but I can confirm that in russian if you say “memory” (“память”), you are talking about storage capacity. Not RAM.
You think 'Lauren Smiley' doesn't speak english and auto translated this article?
No. But I think it could be the case that the author simply talked to the parents or the subject of the article, and then simply translated what they said in that part from portugese to english. And as a tech non-literate person, she obviously didn’t think to ask them “are you talking about storage space or RAM?”
Personally, I usually specify RAM or hard drive/storage just to make sure I'm clear, because "memory" is pretty ambiguous in my experience.