Detailed Specifications General CPU Intel Celeron processor Dual Core T3100 (1.9GHz, 800MHz FSB, 1MB L2 Cache) Operating System Genuine Windows 7 Home Premium (32bit) (includes recovery partition for Windows 7 Home Premium 64bit) Screen Size 15.6" Widescreen HD TruBrite Display (1366 x 768), supports 720p Memory 2GB DDR3 (1066MHz) expandable to 4GB Storage 250GB (5400rpm) SATA Graphics Intel Graphics Media Accelerator 4500MHD Optical Disc Drive DVD SuperMulti Double/Dual Layer Speakers Stereo speakers Sound High quality stereo speakers Security Kensington cable lock slot for optional theft protection devices LAN 10/100 Base TX Ethernet Wireless Communication 802.11(b/g Modem International V.92 data modem + fax Expansion TV-Out Port VGA / HDMI USB Ports 3x USB 2.0 Ports (2x USB 2.0 + 1x eSATA/USB Combo) Bridge Media Adaptor SD Slot Webcam Yes Buttons and Pointing device Touchpad with Gesture Control Physical Description Weight 2.72kg Battery 6 Cell Lithium-Ion battery Dimensions (W x D x H(front/back)) 383mm x 259mm x 35.5/39.25mm