Vectors vs. Rasters

The difference between Vectors and Rasters...

Vectors: Vectors are basically clean, dynamic lines. You would typically use vectors in graphic designs like logos or posters, where you need more organized, less graded looking lines to make the entire picture look cleaner. 

Some advantages of vector images are the cleanliness and precision of the lines. They can also be resized easily without changing the picture quality. Vectors can also be converted easily to rasters to give the images more depth. 

Rasters: Rasters are lines that look more graded. Raster images are made up of microscopic pixels that give each image its faded colours. You would use these types of lines for more realistic drawings and artwork. These lines can be used to easily to fade colours and give pictures depth.

A few advantages of rasters are for editing images, giving them a continuous deep colour tone. Rasters are also good for complex images, and it gives them a more detailed look, making them look more realistic. 

That is the difference between rasters and vectors, along with some examples and advantages.


(Information: http://vector-conversions.com/vectorizing/raster_vs_vector.html)