I would like to add that although anti-aliasing is helpful, there is an additional cost that comes with the computation involved that can be non-trivial depending on the application. Most games on the PC today have an anti-aliasing option in the settings to reduce the pixelated "jaggies" that can be seen in the game otherwise. However, for many people with lower-end graphics cards or machines, anti-aliasing is often deliberately turned off so that the game can run smoother. This is to say that while anti-aliasing is nice, there is an overhead computational cost that is somewhat significant when it comes to intensive activities like gaming.
I would like to add that although anti-aliasing is helpful, there is an additional cost that comes with the computation involved that can be non-trivial depending on the application. Most games on the PC today have an anti-aliasing option in the settings to reduce the pixelated "jaggies" that can be seen in the game otherwise. However, for many people with lower-end graphics cards or machines, anti-aliasing is often deliberately turned off so that the game can run smoother. This is to say that while anti-aliasing is nice, there is an overhead computational cost that is somewhat significant when it comes to intensive activities like gaming.