Acer Aspire 5050-5430 14.1" Laptop Computer (AMD Athlon 64 X2 Dual-Core TK-53, 1 GB RAM, 120 GB Hard Drive, Dual-Layer DVD-RW, WXGA, Windows Vista Home Premium) Windows Vista Home Premium pre-installed w/COA AMD Athlon 64 X2 TK-53 1.7 GHz processor 1 GB DDR2 SDRAM (supports up to 4 GB) 120 GB hard drive SuperMulti DVDRW DL drive