HEWLETT PACKARD - HP Pavilion dv7t Quad Espresso Black Desktop replacement Laptop - Windows 7 Professional 64-bit , Intel Core i7-720QM Processor (1.6GHz, 6MB L2 Cache, 1333MHz FSB), 4GB DDR3 System Memory, 640GB SATA HD, 1GB Nvidia GeForce GT 230M, 17.3" diagonal HD+ High-Definition HP LED BrightView Widescreen Display (1600 x 900), LightScribe SuperMulti 8X DVD+/-RW with Double Layer Support , Webcam, Intel Wireless-N Mini-card with Bluetooth