Creating vector graphics

Original (bitmap) picture.  

Zoomed in part of the (bitmap) picture with high  pixelation.

The vector version of the original picture.

A zoomed in part of the vector picture.

When you make a vector picture it uses objects rather than (bitmap) pixels, this is because when want to make something that doesn't requiter a realistic aspect to the picture. For example: Poster for a game (and or movie or book), logo for a company (and or sports team).