Sony VAIO VPC-EB45FX/BJ 15.5" LED Black, Intel Core i3-380M dual core 2.53GHz processor, 4GB memory, 640 SATA HDD, Windows 7 Home Premium, HDMI + DVD burner/reader 2.53 GHz Intel Core i3-380M dual-core processor 4 GB of installed DDR3 RAM (1066 MHz; 8 GB maximum) 640 GB SATA hard drive (5400 RPM),multi-format DVDR/RW drive 15.5-inch LED-backlit display with 1366 x 768 resolution Windows 7 Home Premium