Vector Artwork What Does It Mean?

Well this is a common question asked and it is very hard to explain but it is file that has been drawn in a programme such as Adobe Illustrator, Freehand, Corel Draw, Flash, etc, which is then created into outlines. This means you can resize it and the quality stays the same. This is different to images made using Raster files such as JPEGS, GIFS etc as they are made up of dots or pixels which when scaled have to be processed by the computer which usually results in a jagged line which when printed looks terrible.

Good explanation comes from Wikipedia;

“Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations, to represent images in computer graphics.
Vector graphics formats are complementary to raster graphics, which is the representation of images as an array of pixels, as it is typically used for the representation of photographic images. There are instances when working with vector tools and formats is the best practice and instances when working with raster tools and formats is the best practice. There are times when both formats come together. An understanding of the advantages and limitations of each technology and the relationship between them is most likely to result in efficient and effective use of tools.

Another good explanation is at http://news.deviantart.com/article/12990/.