ASUS PT2001-05 Portable 19.5" Touch-Screen All-In-One - Intel Core i5 - 8GB Memory - 1TB Hard Drive 19.5" LED-backlit widescreen 10-point touch screen 1TB Serial ATA III hard drive (5400 rpm), 8GB RAM Intel HD Graphics 4400 Microsoft Windows 8.1 64-bit operating system preinstalled