FreeBSD® is an advanced operating system for x86 compatible (including Pentium® and Athlon™), amd64 compatible (including Opteron™, Athlon™64, and EM64T), UltraSPARC®, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX® developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.
This text is from FreeBSD homepage.
www.freebsd.org
FreeBSD of course
My operating system is [Windows, OS X, Linux, FreeBSD, Solaris 10, BeOS, AmigaOS, FreeDOS, Syllable].
There are several open-source operating systems, most of which appear to be clones of Unix. Examples include FreeBSD, Linux, Minix.
Many operating systems are used on servers, including Linux, Windows Server, Solaris, FreeBSD, and Mac OS X Server.
Relational databases can be run on almost all modern operating systems, including Windows, Linux, FreeBSD, and Mac OS X.
Refer to the following URL http://www.freebsdforums.org/install-freebsd-7-i386/
FreeBSD 7.2 is a legacy RELEASE from the STABLE 7-series tree.
Both Solaris and FreeBSD share a common idea base. The BSD distribution from Berkeley was the starting point for FreeBSD and for SunOS, which is the earlier version of Solaris. As it stands, FreeBSD was developed primarily for the Intel-based chip, whereas Solaris runs primarily on the SPARC chip developed by Sun Microsystems (now part of Oracle). Lastly, Solaris is a proprietary, cost-based version of Unix, whereas FreeBSD is an open-source version.
See related links section.
UFS is the main filesystem for FreeBSD, but ZFS is also a popular choice. ext2, msdos, ntfs (read-only), and smb are also supported.
Means Firewall Packet Filter.
FreeBSD is an operating system for computers and embedded systems and is used by computer professionals and it offers a fast and stable operating system than can be used for any purpose.
Many versions have different specification to what is available for the FreeBSD hosting package. You would have to check what kind version you need and what the requirement will be.
FreeBSD of course
There are several companies that offer FreeBSD Server packages. Some of these companies include Host Gator, Verio, Server Pronto, Colocation America, and Galaxy Visions.
FreeBSD
Linux and FreeBSD are 2 examples