互联网最早起源于1969年美国国防部的电脑网络，被称为阿帕网，它代表高级研究项目管理局。

The Internet had its origins in a 1969 U.S. Defense Department computer network called ARPAnet, which stood for Advanced Research Project Agency.

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虽然你的个人电脑只能保存一个文件的一个副本，但像 Facebook 这样的大型服务项目，则会依赖于所谓的内容分发网络来管理数据和分发。

While your personal computer only keeps one copy of a file, large-scale services like Facebook rely on what are called content delivery networks to manage data and distribution.

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依据组织标准、过程和指导，风险管理项目分为四类：个人计算机、服务器、主机和网络。

Risk management projects can be grouped into four categories: PCs, servers, mainframes and networks, according to organization standards, procedures, and guidelines.

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