... 50HZ((+/-10%)) colorcolor & LOGO can be customized by clients’ requirementexpansion interfacedesigned with printer,IC card (magnetic ... card) reader, fingerprint scanner, camera, phone etcPCconfigurationcustomized by the clients’ requirements operation systemwindows XP,WIN 7, ... ,Win7 etcApplication Field1,government public affairs system 2,public places query / navigation system ( i.e. Plaza, subway, ...