The term to search for related to this is "convergence" - the idea that the very different computing form factors that we use today (smartphone, laptop, desktop, server, and so on) may gradually blend.

Reference: https://www.pmi.org/learning/library/device-convergence-affe...

(in a separate context, "convergence" also relates to an idea that gained traction after WWII that the ideologies of the East and West could gradually combine into something reflecting the benefits of each while removing the downsides; that's another story, though)