Acer AZ5600-U9002 All-in-One 3GB 320GB 23" Touchscreen Acer Aspire AZ5600-U2092 Pentium Dual-Core 2.7 GHz All-in-One Touchscreen PC General Features: Silver color Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA Intel Pentium Dual-Core E5400 2.7 GHz processor Intel G45 Express chipset 3 GB RAM (supports up to 8 GB) 320 GB hard drive SuperMulti DVD RW drive with Labelflash technology