Linux is a free software kernel, which combined with the GNU libraries, core utils and shell form the GNU/Linux operating system.
Ubuntu is a complete Linux-based operating system, freely available with both community and professional support. It is developed by a large community and we invite you to participate too!
Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian uses the Linux kernel (the core of an operating system), but most of the basic OS tools come from the GNU project; hence the name GNU/Linux.
The K Desktop Environment (KDE) is a graphical desktop, a set of applications and a development platform. It is created by a community of people dedicated to create a free and user-friendly computing experience. KDE offers all necessary means to easily build all kinds of applications upon.
KDE has been around since 1996, with code change history dating back at least to 1997.
KDE is one of the biggest free software C++ project around and one of the two leaders of unix desktops.
Wine is an implementation of the Windows API on top of X and Unix. It does not require Microsoft Windows, but can use native Windows DLLs if they are available. It provides both a development toolkit for porting Windows source code to Unix as well as a program loader, allowing many unmodified Windows programs to run on x86-based Unixes.
Gentoo is a free operating system based on either Linux or FreeBSD that can be automatically optimized and customized for just about any application or need. Extreme configurability, performance and a top-notch user and developer community are all hallmarks of the Gentoo experience.
Fedora is a free operating system that offers the best combination of stable and cutting-edge software that exists in the free software world.
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, 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.
Kubuntu is a a user friendly operating system based on KDE, the K Desktop Environment. With a predictable 6 month release cycle and part of the Ubuntu project, Kubuntu is the GNU/Linux distribution for everyone.
The openSUSE project is a community program sponsored by Novell. Promoting the use of Linux everywhere, openSUSE.org provides free, easy access to the world's most usable Linux distribution, openSUSE. The openSUSE project gives Linux developers and enthusiasts everything they need to get started with Linux.
Server Virtualization with the Xen Hypervisor
Enterprises looking to increase server utilization, consolidate server farms, reduce complexity, and decrease total cost of ownership are embracing server virtualization. The Xen® hypervisor is the fastest and most secure infrastructure virtualization solution available today, supporting a wide range of guest operating systems including Windows®, Linux®, Solaris®, and various versions of the BSD operating systems.
OpenSolaris is an open source project created by Sun Microsystems to build a developer community around the Solaris Operating System technology.
The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system... efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. OpenBSD supports binary emulation of most programs from SVR4 (Solaris), FreeBSD, Linux, BSD/OS, SunOS and HP-UX.
Fluxbox is a lightweight and highly configurable window manager with pwm-like tabs.
Arch Linux is a lightweight and flexible linux distribution that tries to Keep It Simple.
Official packages optimized for the i686 and x86-64 architectures are available. We complement our official package sets with a community-operated package repository that grows in size and quality each and every day.
Mandriva Linux is a community-based Linux distribution, suitable for a wide range of solutions: from clustering to servers, firewalls and - most commonly - desktops. Mandriva Linux has a long history of open development, especially via the "Cooker", a fluid distribution that resembles a stable release for a few weeks every six months.
Parsix GNU/Linux is a live and installation CD derived from KANOTIX and based on Debian. It is a complete GNOME centric desktop oriented distribution. Beside of the dozens supported languages, Parsix GNU/Linux also supports Persian keyboard and users can switch to Persian with Alt+Shift keys. You can install and use Parsix GNU/Linux as your PC's operating system.
Xubuntu uses the Xfce desktop environment, meaning that it will run fast while still delivering a user-friendly interface. Older computers feel lively again, while newer ones will run faster than ever before!
Pardus is GNU/Linux distribution developed by TUBITAK/UEKAE according to computer literates' basic desktop needs; uses existing distributions' dominant parts as concept, architecture or code; provides easy use, configuration, installation with configuration environment and tools that can be converted to an autonomous system.
Haiku is an open-source desktop operating system with the goal to create an innovative and seamless computing experience. Our first release will be an improved remake of BeOS R5, which was a commercial operating system created by Be Inc. After the company closed its doors a group of developers decided to continue the BeOS as an open source effort.