Sony VAIO VGN-NS135E/S Display : 15.4" diagonal WXGA High-Definition XBRITE Widescreen Display (1280 x 800) Processor : 2.00 GHz Intel Pentium Dual-Core Memory : 3 GB Hard Drive : 250GB Multimedia Drive : 8X DVDR/RW DL Wi-Fi : Intel PRO/Wireless 802.11 b/g/n Weight : 6.4lbs Operating System : Windows Vista Home Premium Computer Type : Notebook Type of Use : Portable Action Buttons : AV Mode, Mute Pointing Device : Electro-Static touch pad Keyboard : QWERTY, 86 keys with 2.5mm stroke and 19.05mm pitch Camera : Built-in 1.3 megapixel MOTION EYE camera and microphone Power : Standard Lithium-ion battery, AC Adapter Applications: Microsoft Office 2007 Enterprise Protection: Anti Spyware, Anti Maleware, Anti Virus