f7fcab81_eeBSD_vs_Linux_vs_Windows_2000__Linux
[0] Development infrastructure [FreeBSD] FreeBSD is an advanced BSD Unix operating system. The source code for the entire system is available in a centralized source code repository running under CVS. A large team (200+) of senior developers has write access to this repository and they coordinate development by reviewing and commiting the best changes of the development community at large. FreeBSD is engineered to find elegant solutions for overall goals, rather than quick hacks to add new functionality. [Windows 2000] Microsoft Windows is a closed-source operating system driven by market demand rather than technical merit. New technologies are rushed into the product before they have been properly designed or fully implemented. Very little is known about the internal development infrastructure of Microsoft but the "blue-screen of death" speaks for itself. [Linux] 
Linux is a Unix-like kernel that must be combined with the GNU system to make a complete operating system. Linux does not use any version control system so all bug-fixes and enhancements must be emailed back and forth on mailing lists and ultimately submitted to the one person (Linus) who has authority to commit the code to the tree. Due to the overwhelming amount of code that gets written, it is impossible for one person to adequately quality control all of the pending changes. For this reason there is a lot of code in Linux that was hastily written and would never have been accepted into a more conservative operating system.
FreeBSD vs Linux vs Windows 2000
Linux