computer graphics, computer graphical design and computer art.
Computer art could be under computer graphics, as well as in art world, such as in art galleries and art shows.
On the other hand, computer graphical design is mostly in advertisement business with exeption that some beautiful design could be also considered as artwork.
More details will come later :))
(因为对应的中文翻译我不太准确,先就用英文比较好表达意思,见谅。)