... 12-inch usb touch screen lcd monitor for digital advertising LCD screendimension17"Aspect ratio4:3brightness300cd/m2contrast ... /USBdurable timemore than 50 million timesoperation systemWin2000\WinXP\WinNT\Win2003\WinVista\LinuxUsing temperature0-40°Cstorage ... , natural,practical humancomputer interaction devices, which are used for government, business, bank, telecommunications,tourism, schools and ...