Dell Dimension  The Dell Dimension series was a line of home and business desktop computers manufactured by Dell. In 2007, the Dimension series was discontinued and replaced with the Dell Inspiron series for low-end models and the Dell Studio series for higher-end models. The last high-end computers to be released under the Dimension line were the 9200 and 9200c (XPS 410 and XPS 210 in the American market, respectively). The E520, E521 and C521 were re-introduced under the Inspiron line under the names Inspiron 530, 531, 530s and 531s, with a revised case design. * As of BIOS Revision 1.1.11 # As of BIOS Revision 2.4