Acer Aspire AZ3731-UR21P All-in-One Pentium Dual-Core E6700 3.2GHz 4GB 1TB DVD&plusmn;RW 21.5" Touchscreen Windows 7 Home Premium w/Webcam Acer Aspire AZ3731-UR21P All-in-One Pentium Dual-Core 3.2 GHz All-in-One PC General Features: All-in-One desktop design Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA reinstallation partition Intel Pentium Dual-Core E6700 3.2 GHz processor 2 MB Intel Smart Cache, 1066 MHz FSB Intel G43 Express chipset