One was something called a proxy server which just makes it look like her computer is at the university or something.

一个是所谓的代理服务器，它只是让它看起来像她的电脑在大学或其他什么地方。

So what your phone does is it connects over the internet to another computer that we call a server, and that computer can do calculations and send the answer back to your phone.

所以你的手机通过互联网连接到另一台我们称之为服务器的计算机，这台计算机可以进行计算并将答案发送回你的手机。

Now, armed with the IP address of the computer you want, your web browser opens a TCP connection to a computer that's running a special piece of software called a web server.

现在，有了您想要的计算机的 IP 地址，您的 Web 浏览器就会打开一个到运行称为 Web 服务器的特殊软件的计算机的 TCP 连接。