For instance, an incoming chat is a real time and synchronous form of communication: there is another user actively waiting on you to respond.

例如，一个接收到的聊天是实时并且同步形式的通讯方式：那里有另外一个用户正在等待你的反馈。

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Web servers wait for browsers to request pages, FTP servers wait for clients to request files, and chat servers wait for incoming chat client connections.

Web服务器要等待浏览器请求页面，FTP服务器要等待客户机请求文件，聊天服务器要等待聊天客户机所发出的连接。

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On the right edge, you'll notice a volume jog dial for incoming chat audio and a backlit button for switching between speaker and headset mode.

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This ensures important applications that require high-speed connectivity, such as online games and video chat, get priority over less important traffic, such as incoming email or system updates.

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Incoming messages pop up on the top right in the form of what Facebook calls chat heads, which are bubbles that each represent a particular conversation thread and is displayed via a pop-over dialog box.

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