This versatile laptop runs on the Windows Vista Home Premium 64-bit operating system and comes loaded with an AMD Turion 64 X2 TL-60 2.0GHz processor, 4GB DDR2 memory, and a 320GB hard drive. The ay M-1631U Laptop Computer also boasts a 8x Multi-Format Dual Layer DVDRW with DVD-RAM drive that you can use to burn music and watch your favorite movies on the M-1631U