The X Window System, also known as X11, is a graphical windowing system used on Unix-like systems, according to iDefense.

X Window系统又称X11，是运行于类Unix框架基础上的图形视窗系统。

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We will use the free, portable X window system as well.

同时我们将使用免费的，可移植的X视窗系统。

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Configuration file: This file provides configuration and runtime parameters for initializing the X Windows system.

视窗配置文件：这个文件提供了初始化x视窗系统的配置信息和运行时参数。

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