Back in 1800 the steam engine was king. The first steam locomotive was made in 1804; commercial success came in 1812. Those folks would have been dumbfounded at the Model T, not to mention a 1957 Buick Roadmaster, much less the Tesla Model S. In-freakin'-conceivable. And yet here they are.
It's going to be the same with computer tech. The stuff those folks will have 50, 100 years from now, unimaginable (even if the seas rise by 30 feet).
But you know what they won't have? That's right, they won't have super-intelligent computers. That's an idea grounded in current hopes and fears, not in anything like the deeper understanding of computing they'll have in 2118, And they'll probably understand the brain much better as well.