对于一台电脑来说，如果说出色的硬件是它的“身体”的话，那么系统就是它的"灵魂"，安装了操作系统用户才能使用电脑来进行各种各样的操作。 就目前来讲，Windows依然是PC机里面使用最多的系统，当然除了Windows之外，还有一些其它非常优秀的操作系统。

COMMENTARY--As we all know, Unix is a great server operating system. It's been around for a long time, so all its newness has worn off (this is good, since many IT managers seem to be easily alarmed ...