[bux93]

The hercules card had a "80 × 25 text mode with 9 × 14 pixel font (effective resolution of 720 × 350, MDA-compatible)" (wikipedia), but the graphics mode was 720 x 348.

It always blew my mind that you'd buy a new videocard, and plug the big CRT monitor in it, and it would switch between different resolutions. Precisely because the holes and pixels don't line up, they supported a huge range of resolutions and it didn't look as smeared as on LCDs.

I think the mask in the CRT itself also contributed to a kind of subpixel Anti-Aliasing.

And I've never seen this in real life, but it's amazing, using the hardware implementation to force 1024 colors out of CGA?! https://int10h.org/blog/2015/04/cga-in-1024-colors-new-mode-...