Toshiba C855-S5319 Intel Core i3-3110M 2.4GHz Notebook - 4GB RAM, 640GB HDD, 15.6" widescreen LED backlit HD display, Intel HD graphics, DVD SuperMulti, Fast Ethernet, 802.11b/g/n, Webcam, 6-cell Li-ion Battery, Satin Black Trax. Processor: Intel Core i3-3110M 2.4GHz RAM:4GB DDR3 1600MHz SDRAM Graphics:Intel HD graphics Hard Drive: 640GB Serial ATA HDD Operating System: Windows 7 Professional 64-bit