在参考资料部分中的IBM试用软件中，可以下载这些产品的试用版本。
Refer to IBM trial software in the Resources section to download trial versions of these products.
SGI有一个免费的午餐区，在那儿你可以下载免费的软件、电脑游戏、图片还有视频。
SGI has a free LUNCH area where you can download free software, computer games, graphics, and video.
可以下载这个软件并免费使用30天，这段时间足够您体会它的众多特性了；但是在此之后，如果希望继续使用它，就必须购买许可证。
You can download and run the software for 30 days at no charge, which is enough time to try the IDE's many features, but you must then buy a license if you want to continue using it.
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