Dell Optiplex 9020 23-inch All- In-One Desktop i5 i5-4570S Quad-Core 4gb RAM 500gb Hard Drive DVD +/- RW Webcam+WiFi+Bluetooth Windows 7 Professional (Includes Windows 8.1 Pro license) 23 Inch WLED Full-HD Non Touch with Web Camera All-in-One Display Intel Core 4th Generation I5-4570S Processor (2.90GHz Turbo, 6MB, w/ HD Graphics 4600) 4GB DDR3L at 1600MHz, 500 GB SATA Hard Drive (7200 RPM) Intel Dual Band Wireless-AC 7260 + Bluetooth 4.0 and 8X DVD +/- RW Drive Windows 7 Professional (Includes Windows 8.1 Pro license), 3 Years Dell Warranty