Companies like Apple kind of do it for you as you upgrade from iPhone to iPhone and data from your old phone is transferred to the new one.
Nothing is certain.
Sure historians will know, which is a bit of what antique collectors are. But in 120 years? People won't have a clue what Apple was.
In the course of 100+ years, Apple is not important. It had about 15 years of groundbreaking change, now it has none.
And to be fair on that, the computing market is fairly mature now. Their latest AR gambit seems interesting, but it hardly revolutionary.
Look at Rolex watches. They were the pinnacle of innovation in their sector, and a must have for anyone even mildly well to do. Sort of like Apple. They're basically gone now.