Workplace PC: ReCircuit Optiplex 755 Desktop, Intel Core 2 Duo 2.93GHz, 8GB RAM, New 1TB HDD, Windows 7 Pro 64-Bit, WiFi, DVD/CD-RW (Prepared by ReCircuit) <span class="a-text-italic">New</span><span class="a-text-bold">1TB</span>HardDrive Comes Pre-Installed with New<span class="a-text-bold">Windows 7Professional 64-Bit</span>Operating System Package includesQuick Start Guide, New<span class="a-text-bold">ReCircuit</span>USB Mouse, USB Keyboard, Mousepad, and Power Cable!