NonTrial  | 2007-07-01
Unix based FreeBSD
FreeBSD is designed to provides binary compatibility with several other Unix-like operating systems, including Linux. This means that Linux programs can be run, along with some commercial applications distributed only in binary form. Applications built for the Linux compatibility layer include StarOffice, the Linux version of Firefox, Adobe Acrobat, RealPlayer, VMware, Oracle, Mathematica, Matlab, WordPerfect, Skype, Doom 3 and Quake 4. Fortunately for the FreeBSD user, word has it that there is no noticeable performance penalty when running Linux binaries over native FreeBSD programs, and they may even be faster than the same binaries running on Linux. Unfortunately the layer is not completely seamless and some Linux binaries are unusable on FreeBSD or possess limited functionality.