Lenovo B590 Windows 7 Pentium 15.6-Inch Laptop (Black) 59410452 Intel Pentium Dual-Core 2020M 2.4 GHz Processor (2 MB Cache) 4 GB DDR3 RAM 500 GB 5400 rpm Hard Drive 15.6-Inch Screen, Integrated Windows 7 Home Premium 64-bit, 5-hour battery life