Dell OptiPlex 755 Desktop Computer is a reliable and powerful machine designed for casual computing needs. It features an Intel Core 2 Duo processor with a speed of 2.83 GHz, 4 GB of RAM, and a 250 GB HDD storage capacity. The computer's graphics are handled by Intel HD Graphics, and it comes with a variety of connectivity options including VGA, DisplayPort, USB 1.0/1.1, and USB 2.0. The computer's color is grey/black, and it has a tower form factor. It also includes an optical drive and a serial & parallel port. The Dell OptiPlex 760 Desktop Computer is perfect for users looking for a reliable and efficient machine for their casual computing needs.