Microsoft desktop operating system

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Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

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Community-driven free software effort focused on delivering a robust open source ecosystem around a Linux platform.

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Debian is a Linux distribution that's composed entirely of free and open-source software.

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Unix is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

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The Amazon Linux AMI is a supported and maintained Linux image provided by Amazon Web Services for use on Amazon Elastic Compute Cloud (Amazon EC2).

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Red Hat Enterprise Linux is a Linux distribution developed by Red Hat for the commercial market.

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FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution, which was based on Research Unix.

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Fedora is a Linux distribution developed by the community-supported Fedora Project which is sponsored primarily by Red Hat, a subsidiary of IBM, with additional support from other companies.

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SUSE Linux is a computer operating system developed by SUSE. It is built on top of the free and open source Linux kernel and is distributed with system and application software from other open source projects.

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Cisco Internetwork Operating System is a family of network operating systems used on many Cisco Systems routers and current Cisco network switches.

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OpenBSD is a security-focused, free and open-source, Unix-like operating system based on the Berkeley Software Distribution.

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Scientific Linux is an open source computer operating system based on Red Hat Enterprise Linux.

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Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware.

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Gentoo Linux is a Linux distribution built using the Portage package management system.

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

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Darwin is an open-source operating system developed by Apple Inc

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PCLinuxOS is a user-friendly Linux distribution with out-of-the-box support for many popular graphics and sound cards, as well as other peripheral devices.

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Univention Corporate Server (UCS) is the innovative basis for the cost-efficient operation and easy administration of server applications and entire IT infrastructures.

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SunOS is a Sun Microsystems implementation of the Unix operating system.

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