The concepts of AI have been around a long time and weren’t really any different back then. Even the fundamental technology that current AI is built on has mostly been around since like the 70s, its just the amount of data that can be used to train them is staggeringly larger, which has lead to the recent breakthroughs in capability.
I dunno what you’re saying here. Public awareness of AI wasn’t as “mainstream” as now, but especially for people that were reading science fiction, it certainly wasn’t “space magic”. Asimov’s I, Robot was published in 1950! People have been contemplating and writing about the potential of AI for a very long time.