HP Pavilion TouchSmart - Windows 8.1. Intel Core i3-4005U processor. 15.6" diagonal HD BrightView LED backlit touchscreen display. Up to 5 hours and 55 minutes of battery life. 4GB DDR3L SDRAM. 750GB hard drive with HP ProtectSmart Hard Drive Protection. Intel HD graphics 4400. Full size island style keyboard with numeric keypad. SuperMulti DVD burner. Intel 1x1 802.11ac WLAN.