Toshiba L655-S5083 Pentium Dual-Core P6100 2.0GHz 4GB 320GB DVD&plusmn;RW 15.6" LED Notebook Windows 7 Home Premium w/Webcam & 6-Cell Battery Toshiba L655-S5083 Pentium Dual-Core 2.0 GHz 15.6-inch Laptop General Features: Fusion Finish in Helios Black Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA and reinstallation partition 6-Cell Li-ion battery Mobile Intel HM55 Express chipset Intel Pentium Dual-Core P6100 2.0 GHz CPU 4 GB DDR3 SDRAM (supports up to 8 GB, actual available memory may be less)