FreeBSD是一份UNIX操作系统，它面向i386、IA-64、PC-98、Alpha/AXP及UltraSPARC平台。它基于加州伯克利大学的4.4 BSD-Lite发布，并带有一些4.4 BSD-Lite2增强。它还非直接地基于William Jolitz的port，这源于加州伯克利大学i386化的“Net/2”也即“386BSD”，尽管386BSD中只有非常少的代码遗留下来。FreeBSD被遍布全世界的公司、Internet服务提供商、研究人员、计算机专家、学生，以及家庭用户用于他们的工作、教学和娱乐之中。

        Ken Smith has announced that the first beta release of FreeBSD 7.2 is now available for testing: "The first of the test builds for the FreeBSD 7.2-RELEASE cycle is now available. Testing of two recent changes to the system would be particularly valuable. The bce(4) network driver was updated a few days ago. And some significant work was done on the threading libraries a short time ago that is known to fix several major issues but testing to see if it introduced any regressions would be appreciated. If you would like to do a source-based update to 7.2-BETA1 from an already installed machine you can update your tree to RELENG_7 using normal cvsup/csup methods. The freebsd-update(8) utility supports binary upgrades of i386 and amd64 systems running earlier FreeBSD releases." Read the rest of the release announcement for more update details and known issues. Download (MD5): 7.2-BETA1-i386-dvd1.iso (2,144MB), 7.2-BETA1-amd64-dvd1.iso (2,235MB).（责任编辑：A6）