这些系统可以是硬件或软件设备，它们能够监控跨越网络对服务器的访问、来自服务器的访问以及服务器自身的活动。

These systems are hardware or software devices that can help you monitor access across the network to and from your server as well as activity on the server itself.

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该设备能在单一系统同时探测、监控和记录视频基带、无线电通信、卫星通信以及雷达信号。

It enables a combination of video baseband, radio communicatons, satellite communications, and radar signals to be detected, monitored, and recorded simultaneously on a single system.

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但如果向嵌入式系统添加一个虚拟机监控程序，将添加灵活性和一些高级功能，将嵌入式设备转变为一种新型系统。

But adding a hypervisor to an embedded system adds flexibility and higher-level capabilities, morphing the embedded device into a new class of system.

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