Art made with the assistance of computers, mostly in the sense of mathematical Arts, where pictures are created by algorithms, or of fractal art. Computer Arts has been existing since the 1950s.
This implies the representation of constructional objects (houses, squares, bridges etc.) for their own sake, thus serving not only as staffage, background, or as attribute. There were architecture pictures already in ancient Pompeji. In Middle Ages depicted constructions just indicate a certain scene. The actual architecture picture arises in the 16th century in Netherlands(f. e. “Brueghel's Tower of Babel”). Dutch artists prevailed here up until the 17th century, and were followed by Italian artists in the 18th century. In modern times the representation of architecture has become a domain of photographers.