ASUS K50IJ-J1 15.6-Inch Laptop - Black Intel Pentium Dual-Core T4500 processor (2.3 GHz) 4 GB of DDR2, 1 slot, 4 GB Max 320 GB Hard Drive (5400 RPM); DVD Super-Multi Drive 15.6-Inch HD (1366x768) LED Display; Intel GMA graphics; Wi-Fi 802.11bgn; 1.3 MP webcam Windows 7 Home Premium (64 bit) Operating System