On the same machine, open a second login window.

在同一台计算机上，打开第二个登录窗口。

youdao

It's tough to find a window unit that's lighter than 46 pounds-and a machine like that would be able to cool only a fairly small room (150 square feet or less).

这很难找到一个窗口的机器重量轻于46磅，而这样的机器也只能够凉快相当小的房间(150平方英尺或以下)。

youdao

Refresh the window to display the IP address and name of Machine C (sons).

刷新窗口以显示 Machine C（sons）的 Ip 地址和名称。

youdao

In the other context, you know in a Window and a Windows machine, you close it with the X on the top right hand corner, where do you close it in the Mac?

还有一个就是，在Windows操作系统下,当你要关闭某个东西时，需要点击,右上角的“X“,那在Mac操作系统下呢？

哈佛公开课 - 计算机科学课程节选

On Tuesday the French firm Vupen, whose researchers develop software hacking techniques and sell them to government agency customers, announced that it had already developed an exploit that could take over a Window 8 machine running Internet Explorer 10, in spite of the many significant security upgrades Microsoft built into the latest version of its operating system.

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BBC: Ransomware page