Illustrate the meaning of anti-aliasing

Question

Illustrate the meaning of anti-aliasing?

Answer 1

Anti-aliasing is a technique for enhancing the realism of an image by eliminating the jagged edges from it. Such jagged edges or jaggies appear since a computer monitor consists of square pixels and these square pixels are insufficient for displaying lines or curves which are not parallel to the pixels and other reason is low sampling rate of image information that in turn leads to such jaggies.