CentOS

SalineOS is a lightweight and fast open-source operating system built on the Debian GNU/Linux repositories and uses Xfce as the desktop environment.

Superb Mini Server (SMS) is a Slackware-based server distribution with web, DNS, DHCP, file, print and fax servers, iptables firewall, mail server with spam filter and anti-virus scanner, and BitTorrent...

Hanthana is a Linux based operating system and a Fedora remix suitable for desktop and laptop users. Hanthana comes to you in the form of a Live CD for regular …

Windows Server 2012, codenamed "Windows Server 8", is the sixth release of Windows Server. It is the server version of Windows 8 and succeeds Windows Server 2008 R2. Two pre-release …

Windows 2000 is the successor to Microsoft's Windows NT. It is primarily designed for business users; its counterpart for home users is Windows ME. Support for Windows 2000 ended in …

Pinguy OS an out-of-the-box working operating system for everyone, not just geeks This OS is for people that have never used Linux before or for people that just want an …

UTUTO GNU/Linux is a Gentoo Linux -based distribution developed by at the Universidad Nacional de Salta in Argentina. Named after a fidgety local lizard that pokes its nose into every …

gNewSense is a fully free software GNU/Linux distribution. Free software is software that respects your freedom. You can use it without restrictive licenses, make copies for your friends, school or …

Formerly called "M_Ordinateur OS", SymplyOS is a Linux openSUSE OS. It features a GNOME desktop, LibreOffice suite, Google Chrome, a 1-click install for codecs. Like Linux Mint,...

PC-BSD is a user friendly desktop Operating System based on FreeBSD . Known widely for its stability and security in server environments, FreeBSD provides an excellent base on which to …

TinyMe is a Unity Linux-based mini-distribution. It exists to ease installation of Unity Linux on older computers, to provide a minimal installation for developers, and to deliver a fast Linux …

openmamba GNU/Linux is a ready-to-use operating system for netbooks, notebooks, desktop and server personal computers. It comes with a plenty of software programs for office, multimedia, internet, games and...

Windows 95 was the one of the biggest steps in terms of ideals of how should an OS work and what appearence should follow.

Trisquel is a fully free operating system based in GNU/Linux, for home users, small enterprises and educational centers.

Qubes is an open source operating system designed to provide strong security for desktop computing.

The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography....

The best MS-DOS Windows Operating System released by Microsoft. Nowadays many players of abandonware still miss this rather stable and innovative OS.

Semplice Linux is a simple, fast and lightweight distribution based on Debian's unstable branch. It includes a small collection of up-to-date applications running on top of the Openbox window manager.

Patch takes a patch file containing a difference listing produced by the diff program and applies those differences to one or more original files, producing patched versions.

Parsix GNU/Linux is a live and installation DVD based on http://suse.me/apps/debian/ GNU/Linux. The project's goal is to provide a ready-to-use and easy-to-install operating system based on http://suse.me/apps/debian/'s testing branch and …

The Chakra project aims to create a full-featured KDE build with the simplicity of Arch Linux builds. Another aim is to create support in the OS for GTK applications with …

A project providing a fully free (as in freedom) derivative of Arch Linux. Inheriting Arch's lightweight and flexibility, Parabola offers software freedom plus all power to the users.

The kademar Linux distribution is a complete desktop Linux operating system based on Debian GNU/Linux. Compared to its parent, it includes more intuitive system management and better hardware support,...

Pardus is a GNU/Linux distribution funded and developed by the Scientific & Technological Research Council of Turkey. Pardus has a range of unique features, such as Mudur, a start-up framework …

The first version of Windows released to market that had a GUI that radically changed the concept of OS.