HP dv6-2155dx Core i3 330M 2.13GHz 4GB 500GB DVDRW 15.6" LED-Backlit Windows 7 Home w/Webcam & 6-Cell Battery HP Pavilion dv6-2155dx Core i3 330M 2.13 GHz 15.6-inch Entertainment Notebook General Features: Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA Intel Core i3 330M 2.13 GHz processor 4 GB of DDR3 RAM 500 GB 7200 RPM SATA Hard Drive Built-in Altec Lansing Stereo Speakers DVD RW DL Drive w/LightScribe Technology 15.6-inch BrightView LED-Backlit Widescreen Display (1366 x 768)