Does this relate to something called 'Anti-Aliasing' in video games? I'm seeing that option in every single game I've played. If it's the same, Now I know when to turn it on and turn it off!:)

So anti-aliasing is a good thing? It requires more process cost, basically more overhead to give better graphics?

I was wondering the same thing as barath. Does anti-aliasing significantly affect the graphical fidelity of the resulting image?

I think it is related to Anti aliasing in video games. But I'm not sure which type of anti aliasing they use there. There are various methods like Fast approximate and multisample anti aliasing that exist in addition to super sampling anti aliasing that we're learning here. My intuition as to why it's an option for the user, even though it's a good thing is that a user might not have a capable GPU/hardware to deal with the additional load.

Is possible to successfully do some sort of random sampling to generate images? Random sampling is pretty popular in other areas.

Is the solid color grid calculating from box filter integration? What's the samplings here?

Same as above. Seen the Anti aliasing option in many games but never known what it meant