Gateway 15.6-inch Laptop Celeron B800 1.50GHz | NV57H50U Intel Celeron processor B800, 2GB DDR3 memory expandable to 8GB 320GB Serial ATA hard drive (5400 rpm), Multiformat DVDRW/CD-RW drive with double-layer support. Multi-in-1 media reader Intel HD Graphics 3000, HDMI output for connection to an HDTV. 15.6" LED-backlit LCD high-definition widescreen display Built-in 1.3MP high-definition webcam and microphone, Built-in high-speed wireless LAN (802.11b/g/n), Built-in 10/100/1000 Gigabit Ethernet LAN Microsoft Windows 7 Home Premium 64-bit operating system preinstalled, 6-cell lithium-ion battery, up to 4 hours to give you more time away from an outlet.