Amiga Screens: A Primer

How do different resolutions (pixel sizes) work? I get that everything memory related (including color mode and depth) could be switched on a raster line.

In theory it should be possible to change the frequency of the video signal mid screen as well, but I have a hard time to imagine switching repeatedly every frame wouldn't have driven the monitors of the time crazy. Even multi-sync monitors needed probably a couple of frames to sync, right?

Maybe its me, but i believe the primary or secondary reason for screen is different screens had different resolutions and color depths, both of which dont really exist these days on any major OS.

I don’t know much about Amiga, but from this article I recognize the Atari 8 bit / ANTIC DLI heritage at play!