In 1987, a beginning computer user was overheard saying in a new York store that he was having trouble learning Microsoft DOS, the new disc operating system for personal computers.

1987年，有人听到一位电脑初学者在纽约一家商店中说他在学习微软的DOS系统(适用于个人电脑的一种新的磁盘操作系统)时感到有困难。

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In the worst case, your system might be damaged enough that you'll have to boot from the operating system installation media or a rescue disc.

在最坏的情况下，您的系统可能遭受了很大程度的损坏，以致于您不得不从操作系统安装媒介或修复盘进行启动。

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Some computer systems come outfitted with solid-state drives for the operating system and regular disc-drives for applications.

有些计算机系统都配备了用于操作系统和应用程序经常光盘驱动器的固态驱动器。

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Chances, are, however, you keep a backup copy of your operating system on an optical disc in the desk drawer, just in case.

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And the release of Microsoft's Windows 8, an operating system that works on disc-free smartphones and tablets as well as laptops and PCs, suggests that computing giant would be well positioned for such a move as well.

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It takes the software packages developed by Linux volunteers, tests them, assembles them into a working operating system and ships the result on a compact disc along with a manual and a promise of support.

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