Download Unix
There is no charge for downloading Unix via the Internet, and anyone can do it.
This is one of the things that make Unix different from proprietary Operating Systems like Microsoft Windows.
Among the versions available for download, you can find: FreeBSD, OpenBSD, Red Hat Fedora Linux, Debian Linux, Ubuntu Linux, and Sun Solaris.
FreeBSD is an operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon 64, and EM64T), Alpha/AXP, IA-64, PC-98 and UltraSPARC architectures.
It is derived from the version of UNIX developed at the UC Berkeley, called BSD.
This a FREE, multi-platform 4.4BSD-based UNIX-like operating system that emphasizes 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.
The Solaris an enterprise-class Operating System (OS), is the #1 UNIX environment. It provides scalability, availability, performance, and security on SPARC, AMD Opteron, and Intel Xeon-based systems. Organizations can depend on the stable, high-quality Solaris foundation to develop, deliver, and manage business-critical and mission-critical services with knowing that the OS is fully indemnified, and that Solaris certified applications are guaranteed to run on all new Solaris releases. The Solaris 10 OS (the latest release of this premier operating system) reduces the complexity, costs, and risks associated with today’s diverse computing environments through a number of new technologies. With over 600 new breakthrough features, including Predictive Self-Healing and Dynamic Tracing capabilities, Solaris ZFS (zettabyte file system) management, Solaris Containers (formerly N1 Grid Containers) technology, and more, the Solaris 10 OS gives organizations the tools and technologies to quickly and confidently create powerful computing infrastructures. In fact, the Solaris 10 OS even integrates the most popular open source packages and applications, including Apache, Tomcat, Samba, and Secure Shell. Many open source applications are provided, compiled, tested, and ready to run on the Solaris platform, reducing time to deployment.
The Fedora Project is know for its goal of working with the Linux community to build a complete, general purpose operating system exclusively from free software. The development is done in a public forum. The project will produce time-based releases of Fedora Core about 2-3 times a year with a public release schedule. The Red Hat engineering team participates in the building of Fedora Core and they encourage outside participation. This way Red Hat wishes to provide a free software operating system that appeals to the open source community.
Debian is a free operating system (OS) i.e. 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.
Debian GNU/Linux comes with more than 8710 software packages, that you can install on your machine.
Ubuntu is a community developed operating system, it is perfect for laptops, desktops and servers. Ubuntu contains all the applications you need, like word processing and email applications, web server software and programming tools.
Ubuntu free of charge. You do not pay any licensing fees. It can be shared with anyone you want to.
Gentoo is a free operating system, it is based on either Linux or FreeBSD and it can be automatically optimized and customized for just about any application or need. It offers extreme configurability, performance and a great user and developer community. A technology called Portage allows Gentoo to become an ideal secure server, development workstation, professional desktop, gaming system, embedded solution… it has near-unlimited adaptability, that’s why Gentoo is often referred to as a metadistribution.
Slackware Linux is a complete 32-bit multitasking “UNIX-like” system. It contains an easy to use installation program, extensive online documentation, and a menu-driven package system. A full installation will give you the X Window System, C/C++ development environments, Perl, networking utilities, a mail server, a news server, a web server, an ftp server, the GNU Image Manipulation Program, Netscape Communicator, plus many more programs. Slackware uses -mcpu=i686 optimization for best performance on i686-class machines like the P3, P4, and Duron/Athlon.
Mandriva Linux’s objective has been to turn Linux into something everyone can use. Mandriva strives to make their system user-friendly, cutting-edge and intelligent. It is a recognition that most users want a system that “just works” and does not require hours of fine-tuning. Mandriva Linux is well-known for its ease-of-use and strong tradition of innovation. It has received many awards.
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