HP ProBook Business Laptop Computer - 15.6" LED-Backlit Screen, 4th Gen Intel Core i7-4510U Processor, 16GB Memory, 1TB HDD, SuperMulti DVD Burner, Windows 7 Professional 15.6-inch High-Definition LED-backlit Anti-Glare Screen 4th Gen Intel Dual-Core i7-4510U Processor (2.0GHz, boost up to 3.1GHz) 16GB DDR3 Memory / 1TB Hard Drive DVD Super Multi Burner / Intel HD Graphics 4400 / 6-cell Li-ion Battery Windows 7 Professional 64-bit (Win 8 Professional Optional)