Toshiba Satellite C655D-S5511 Laptop Computer / 15.6-inch HD Display Screen / AMD Dual-Core E-300 1.3 GHz Processor / 4GB DDR3 RAM Memory / 320GB Hard Drive / Double-layer DVD&plusmn;RW / 6-cell Battery / Webcam / Windows 7 Home Premium / Black High-definition widescreen LED-backlit TFT-LCD with TruBrite technology (1366x768) 320GB HD, double-layer DVDRW/CD-RW, media card reader AMD dual-core E-300 1.3GHz accelerated processor, 4GB DDR3 memory, number keypad on keyboard Wifi 802.11b/g/n, 10/100 Ethernet, Webcam, 2 USB ports, 6-cell Li-ion battery Portable 5.5 lbs, 1.1" - 1.5" thin, Genuine Windows 7 Home Premium 64-bit