Digital painting is an emerging art form in which traditional painting techniques such as watercolor, oils, impasto, etc. are applied using digital tools by means of a computer, a digitizing tablet and stylus, and software. Traditional painting is painting with a physical medium as opposed to a more modern style like digital. Digital painting differs from other forms of digital art, particularly computer-generated art, in that it does not involve the computer rendering from a model. The artist uses painting techniques to create the digital painting directly on the computer. From Wikipedia

I am a former watercolor artist who has migrated from traditional media to the digital realm. My brushes are now unlimited thanks to the use of a digital stylus and my paper is a digitizing pallet. These new tools have changed the way I create so my options have greatly expanded. When I painted traditionally, I limited myself to the dictates of the medium. Now, I allow myself to visualize on a much more creative and experimental level. I can try different backgrounds and textures or change the color or shape of an object. I get to experience the gratification of a completed piece much sooner.