SELinux is by far the most well-known MAC system for Linux (mandatory access control).

到目前为止，SELinux是针对Linux的最有名的mac系统(强制访问控制)。

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Introduces the feature, principle and transfer proceeding of MAC system of Satellite TV broadcasting.

介绍了卫星电视广播的MAC制的特点、原理及传送过程。

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Such was the case with Apple's MobileMe launch, in conjunction with the new Mac operating system Leopard.

就像苹果的MobileMe结合了新的Mac Leopard操作系统的推出就是这样的一个例子。

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And if you've ever heard the word driver software that you install in your computer so that your computer, your operating system, Windows or Mac OS, knows how to talk to that piece of hardware, it's that driver software that then empowers the operating systems to send those commands as well, up, the data is laid out on the disk.

并且如果你听说过安装到,电脑中的驱动软件这个词的话，你的操作系统，比如Windows或者是苹果操作系统，通过这个驱动软件我们的电脑，才能知道如何与这个硬件进行通信,正是因为这个驱动软件，操作系统才能根据数据，左右移动的指令来读取磁盘里的数据。

哈佛公开课 - 计算机科学课程节选

Last year, the current Mac system, Lion, was announced during a July earnings report and released the next day.

CNN: Apple's Mountain Lion coming July 25?

The OS X Mountain Lion Up-to-Date upgrade is available at no additional charge via the Mac App Store to all customers who purchased a qualifying new Mac system from Apple or an Apple Authorized Reseller on or after June 11, 2012.

ENGADGET: Apple brings Dictation to the Mac, tells Siri to stay in the car

Nearly every one is designed to run on Windows, and they can't run on the Mac operating system, unless you install Windows on the Mac.

WSJ: T-Mobile's Pricing for the HTC One