Sony - VAIO Tap 20 20" Portable Touch-Screen All-In-One Computer - 4GB Memory - 500GB Hard Drive - Windows 8 Sony VAIO Tap 20 20" Portable Touch-Screen All-In-One Computer - 4GB Memory - 500GB Hard Drive AC adapter, power cord Wireless keyboard and laser mouse Microsoft Windows 8 64-bit operating system preinstalled Note: Optical drive not included