||The CentOS Project is a community-driven free software effort focused on delivering a robust open source ecosystem. For users, we offer a consistent manageable platform that suits a wide variety of deployments. For open source communities, we offer a solid, predictable base to build upon, along with extensive resources to build, test, release, and maintain their code. We’re also expanding the availability of CentOS images across a number of vendors, providing official images for Amazon, Google, and more. For self-hosted cloud, we also provide a generic cloud-init enabled image. For more information about updates and improvements in CentOS 7, please check out the release notes or the release announcement in the mailing list archive.
||Debian is a Unix-like computer operating system that is composed entirely of free software, most of which is under the GNU General Public License and packaged by a group of individuals participating in the Debian Project. The Debian Project was first announced in 1993 by Ian Murdock, Debian 0.01 was released on September 15, 1993, and the first stable release was made in 1996. The Debian stable release branch is the most popular Debian edition for personal computers and network servers, and has been used as a base for many other distributions. The project's work is carried out over the Internet by a team of volunteers guided by the Debian Project Leader and three foundational documents: the Debian Social Contract, the Debian Constitution, and the Debian Free Software Guidelines. New distributions are updated continually, and the next candidate is released after a time-based freeze. As one of the earliest operating systems based on the Linux kernel, it was decided that Debian was to be developed openly and freely distributed in the spirit of the GNU Project. This decision drew the attention and support of the Free Software Foundation, which sponsored the project for one year from November 1994 to November 1995. Upon the ending of the sponsorship, the Debian Project formed the non-profit organisation Software in the Public Interest. While all Debian releases are derived from the GNU Operating System and use the GNU userland and the GNU C Library (glibc), other kernels aside from the Linux kernel are also available, such as those based on BSD kernels and the GNU Hurd microkernel.
||The Fedora Project is a global partnership of free software community members. The Fedora Project is sponsored by Red Hat, which invests in our infrastructure and resources to encourage collaboration and incubate innovative new technologies. Some of these technologies may later be integrated into Red Hat products. They are developed in Fedora and produced under a free and open source license from inception, so other free software communities and projects are free to study, adopt, and modify them. Read an overview to learn more about our mission, our community, our governance, and what makes Fedora unique. You can also learn about our vision and core values — the foundations upon which the project is built. We also have information relating to our user base, and the objectives for our technical work.
||Ubuntu is a Debian-based Linux operating system for personal computers, tablets and smartphones, where Ubuntu Touch edition is used. It also runs network servers. That is usually with the Ubuntu Server edition, either on physical or virtual servers (such as on mainframes) or with containers, that is with enterprise-class features. It runs on the most popular architectures, including server-class ARM-based. Ubuntu is published by Canonical Ltd, who offer commercial support. It is based on free software and named after the Southern African philosophy of ubuntu (literally, 'human-ness'), which Canonical Ltd. suggests can be loosely translated as "humanity to others" or "I am what I am because of who we all are". Since Ubuntu 11.04 Natty Narwhal Ubuntu has used Unity as its default user interface for the desktop, but following the release of Ubuntu 17.10 it will move to the GNOME 3 desktop instead, as work on Unity ends. Ubuntu is the most popular operating system running in hosted environments, so–called "clouds", as it is the most popular server Linux distribution. Development of Ubuntu is led by UK-based Canonical Ltd., a company of South African entrepreneur Mark Shuttleworth. Canonical generates revenue through the sale of technical support and other services related to Ubuntu. The Ubuntu project is publicly committed to the principles of open-source software development; people are encouraged to use free software, study how it works, improve upon it, and distribute it.