Raster & Vector Example Page

Vector data represent elements such as lines, circles and text. All vector elements can
easily be selected or moved.

Raster artwork is composed of small dots that cannot individually be selected or moved.
They look OK but do not print well unless they are at least 300 dpi (Dots per inch.)
They also tend to have jagged edges that print rough and fuzzy (72 dpi.)
 

This is how most Raster files look.

This is how Raster would print.

This is how Vector files LOOK AND PRINT.