One of the books I read when I first got interested in computers was from the Ladybird books How It Works series. The volume covering “The Computer” was published in 1979 and, as you can imagine, features plenty of suitably dated illustrations of computers of the time. It ends with a page speculating about the future of computers and their uses which is very conservative knowing where we are now. It’s very likely that our predictions in 2023 will equally be wide of the mark in a further 40 years.
(Ironically, when I first got this book it was already old-hat according to the first paragraph of this extract.)