Operating Systems

CentOS (Community ENTerprise Operating System) is an Enterprise Linux distribution. community-supported, free and open source operating system based on Red Hat Enterprise Linux. By means of security updates each CentOS version is supported for 7 years. Each CentOS version is periodically updated support newer hardware and a new CentOS version is released every 2 years. This results in a low-maintenance, secure, reliable, predictable and reproducible Linux performance. CentOS is a distribution that deals in long-term stability and security.

FreeBSD Stable is an advanced operating system for modern server, desktop, and embedded computer platforms. It is suitable for computers x86 compatible (including Pentium® and Athlon™), amd64 compatible (including Opteron™, Athlon™64, and EM64T), ARM, IA-64, PowerPC, PC-98 and UltraSPARC® architectures. FreeBSD provides advanced networking, impressive security features, and world class performance and is used by the world's most popular web sites and most pervasive advanced networking and storage devices. FreeBSD Stable brings advanced network operating system features to appliance and embedded platforms, from higher-end Intel-based appliances to Arm, PowerPC, and shortly MIPS hardware platforms. FreeBSD Stable makes an ideal Internet and Intranet server.

Linux Stable distributions have long been used as server operating systems, and have risen consistently to prominence in that area; Netcraft reported in September 2006 that eight of the ten most reliable internet hosting companies ran Linux distributions on their web servers. Components of IBM Roadrunner, the world's fastest supercomputer 2008, which runs Linux. Linux distributions are the cornerstone of the LAMP server-software combination (Linux, Apache, MySQL, Perl/PHP/Python) which has achieved popularity among developers, and which is one of the more common platforms for website hosting. Linux distributions are also commonly used as operating systems for supercomputers: as of June 2009, out of the top 500 systems, 443 (88.6%) run a Linux distribution.