By "night and day" revolution I mean something where previous/recent PC hardware was "ok" or "good" but switching to a modern piece of tech for that hardware goes to "amazing" - like literally going from the extreme of changing from the complete darkness of night to the filling light of day.
The most obvious example for me personally was switching from HDD to SSD. That really was a "night and day" comparison and the crazy reduction to OS and software load times - going from minutes to mere seconds - accompanied by blisteringly faster read/write speeds and even maintenance advantages for laptops, made PCs and laptops so much more user friendly in every way for me.
Anyone else got any other examples?
Obviously I am not talking about things like going from a really old graphics card like a Voodoo TNT to a brand new 4080 because that change is expected and was done bit-by-bit with a lot of small changes over multiple generations and a very long period of time. It's got to be something where technologies changed in a significant way reasonably quickly, or there was an unusually significantly huge jump in tech between one generation of a tech to the next.