Acer Aspire AS5750Z-4835 15.6-Inch Laptop (2.0 GHz Intel Pentium B940 Processor, 4GB DDR3, 500GB HDD, Windows 7 Home Premium) Black Intel Pentium B940 Processor 2GHz (2MB Cache) 4 GB SDRAM 500 GB 5400 rpm Hard Drive 15.6-Inch ScreenIntel HD Graphics Windows 7 Home Premium 64-bit , 4.5hours Battery Life