Amazon: Call of Duty: Black Ops II - PC : Video Games.

System Requirements\n\n OS *: Windows Vista SP2 or Windows 7. Windows XP is not supported. Processor: Intel Core2 Duo E8200 2.66 GHz or AMD Phenom X3 8750 2.4 GHz. Memory: 2 GB for 32-bit OS or 4 GB for 64-bit OS.