rusers 工具向网络上其他主机中的 rusersd 守护进程发送广播，以便返回当前登录的用户的信息，如 清单 6 所示。
The rusers tool sends a broadcast over the network for the rusersd daemon on the other hosts to return the information about the users currently logged in, as seen here in Listing 6.
让人民广播电台和发送文字，音乐和信息，任何世界的一部分。
And radio broadcasts let people send words, music and information to any part of the world.
也有一些广播商尝试用1或2 M Hz带宽发送一些网页或附加信息。
Some broadcasters are also experimenting with 1 - or 2-mbps data channels that send information and Web pages along with a show to provide additional information.
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