Trisquel

vs

GhostBSD

Debian is a free and open-source operating system and GNU/Linux distribution that is openly developed by the community-supported Debian Project. The distribution was first released in 1993 and today it is the base of many other Linux-based distribution such as the popular Ubuntu. The project includes over 59000 packages, precompiled software bundled up for easy installation on your machine.

Fedora is a free and open-source Linux distribution developed by the community-supported Fedora Project. The project is primarily sponsored by the IBM subsidiary Red Hat while also receiving additional support from other companies. Fedora is used both on desktops and on servers where it power enterprise-level systems and provides the latest datacenter technologies.

macOS is a series of proprietary operating systems native to the Apple ecosystem. The operating system powers all of Apples desktop and laptop computers and is the second most popular operating system in the world after Windows.

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution. FreeBSD was first released as in 1993, and is today the most popular free and open-source BSD operating system on the market today. In total, FreeBSD accounts for more than 75% of the market. FreeBSD can be installed easily on most machines and is licensed under the permissive BSD License.

MidnightBSD is a free and open-source desktop operating system for x86 and x86-64 based PCs. The OS is originally forked from FreeBSD 6.1, and periodically updated with code and drivers from later FreeBSD releases. The developers behind MidnightBSD has been stringing since 2006 create an easy-to-use operating system that everyone can use, freely. 

A highly modular, flexible and lightweight Linux distribution for computers with x86-64 processors. Arch Linux is a free and openly developed by the Arch community and released under the GNU General Public License.