ASUS A6410-B1 All-in-One Desktop 21.5-inch Windows 7 Pro Intel Core i3 Processor 4GB DDR3 500GB HDD Intel Core i3 3.1 GHz Processor 4 GB DDR3 RAM 500 GB 7200 rpm Hard Drive 21.5-Inch Screen; Wired Keyboard and Mouse included Windows 7 Professional