The reason "ordinateur" is used in French, is that IBM coined that word because "calculateur" (the regular modern French translation of "computer") sounded too

The reason "ordinateur" is used in French, is that IBM coined that word because "calculateur" (the regular modern French translation of "computer") sounded too mundane. "Ordinateur" suggests sorting, rather than just making simple calculations. It has nothing at all with "keeping the language pure" (which seems kind of a meme in the English speaking world, but really couldn't be further from truth) and it was originally trademarked by IBM, but quickly became a generic word.