Operating Systems
We are your 64-bit software guide...

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.

Thanks to a technology called Portage, Gentoo can become an ideal secure server, development workstation, professional desktop, gaming system, embedded solution or something else -- whatever you need it to be. Because of its near-unlimited adaptability, we call Gentoo a metadistribution.

Of course, Gentoo is more than just the software it provides. It is a community built around a distribution which is driven by more than 300 developers and thousands of users. The distribution project provides the means for the users to enjoy Gentoo: documentation, infrastructure (mailinglists, site, forums ...), release engineering, software porting, quality assurance, security followup, hardening and more.

To advise on and help with Gentoo's global development, a 7-member council is elected on a yearly basis which decides on global issues, policies and advancements in the Gentoo project.
License: Free
Compatibility:    - Linux

The main difference of course is that grml64 is a 64bit-version whereas (normal) grml is 32bit-only. grml64 provides a 64bit kernel which supports 32bit userspace applications. grml64 also provides libc6-i386, libc6-dev-i386, several lib32* packages and ia32-libs. Due to space reasons and because some packages aren't available for amd64 yet some packages are missing on grml64 compared to (normal, 32bit) grml.
Compatibility:    - Linux

Put your SAP applications on SUSE Linux Enterprise servers, and get unprecedented support for both. With the new agreement between Novell and SAP, customers who run their SAP deployments on SUSE Linux Enterprise Server 10 will get joint support from the operating system to the application with one simple call. Get the performance, reliability and scalability that you need to run your mission-critical SAP applications.
License: From $349.00
Compatibility:    - Linux

When you choose SUSE Linux Enterprise from Novell, you get the best engineered, most interoperable platform for enterprise computing. From the desktop to the data center, only SUSE Linux Enterprise delivers a complete open source platform for your mission-critical applications. Whether you are looking for a Linux solution that works with Microsoft Windows, or whether you are looking for a Linux solution with built-in virtualization, security and management tools, you'll get it all with SUSE Linux Enterprise. And it's all backed by enterprise support from Novell and our large partner ecosystem. Come see why companies around the globe—from Wal-Mart to BMW to Casio—are choosing SUSE Linux Enterprise as their Linux solution, from the desktop to the data center.
License: Free Evaluation/$50 To Buy
Compatibility:    - Linux

MenuetOS is an Operating System in development for the PC written entirely in 32/64 bit assembly language, and released under the License. It supports 32/64 bit x86 assembly programming for smaller, faster and less resource hungry applications.

Menuet has no roots within UNIX or the POSIX standards, nor is it based on any particular operating system. The design goal has been to remove the extra layers between different parts of an OS, which normally complicate programming and create bugs.

Menuet's application structure is not specifically reserved for asm programming since the header can be produced with practically any other language. However, the overall application programming design is intended for easy 32/64 bit asm programming. Menuet's responsive GUI is easy to handle with assembly language.
License: Free
Compatibility:    Integrated OS

Fedora is a Linux-based operating system that showcases the latest in free and open source software. Fedora is always free for anyone to use, modify, and distribute. It is built by people across the globe who work together as a community: the Fedora Project. The Fedora Project is open and anyone is welcome to join.
License: Free
Compatibility:    - Linux

Mandriva Linux Powerpack is the commercial edition of Mandriva Linux. It adds a pack of services and commercial applications you can't get any other way. With these exclusive features, you'll find it a breeze to watch DVDs, listen to audio files and watch video files in every format available, and play the best Windows games. Powerpack is the all-in-one edition for new or seasoned Linux users.
License: $49.00
Compatibility:    - Linux

Mandriva Linux 2008 One is the best way to start using Linux. A full Linux operating system on a single CD for both new and experienced Linux users, it is fast to download and install, and also safe to try with a live mode. One is really the one CD you need!
License: Freeware
Compatibility:    - Linux

With Ubuntu Desktop Edition you can surf the web, read email, create documents and spreadsheets, edit images and much more. Ubuntu has a fast and easy graphical installer right on the Desktop CD. On a typical computer the installation should take you less than 25 minutes.
License: Freeware
Compatibility:    - XP - Linux - Mac - Vista | Windows 7 - Solaris