Such systems could also be used by restaurants to send ads to people driving up for window service.
这类系统还能被餐厅用来向开车寻求窗口服务的人群发送广告。
英语百科
Windows service
In Windows NT operating systems, a Windows service is a computer program that operates in the background. It is similar in concept to a Unix daemon. A Windows service must conform to the interface rules and protocols of the Service Control Manager, the component responsible for managing Windows services.