Windows https://www.microsoft.com/

Freedos https://www.freedos.org/

Free BSD https://www.freebsd.org/

Net BSD https://www.netbsd.org/

Open BSD http://www.openbsd.org/

Dregon Fly BSD https://www.dragonflybsd.org/

Amiga Os https://www.amigaos.net/

Sun Os https://winworldpc.com/product/sunos/4x

React Os https://reactos.org/

Haiku https://www.haiku-os.org/

Sylable sylable.com

Sky Os skyos.com

Chrome Os https://www.google.com/chromebook/chrome-os/

Solaris https://www.oracle.com/tr/solaris/solaris11/

Minix 3 http://www.minix3.org/news/index.html

İllumos https://www.illumos.org/

Menuet Os http://menuetos.net/

Plan 9 https://9p.io/plan9/

Kolibri Os https://kolibrios.org/en/

Aranym https://aranym.github.io/

Dex Os https://dex-os.github.io/

Visopsys https://visopsys.org/

Ecom Station https://www.ecomstation.com/index.phtml

Aros http://www.aros.org/

Morph Os https://www.morphos-team.net/

Temple OS https://templeos.org/

Arca Os https://www.arcanoae.com/

Glide Os http://ww1.glideos.com/

Xindesk http://www.xindesk.com/

Os Os 

Zeta Os https://www.operating-system.org/betriebssystem/_english/bs-zeta.htm

Gnu https://www.gnu.org/

Symobi https://www.miray.de/products/rtos/symobi.html

Risc Os https://www.riscosopen.org/content/

Palm Os https://www.palmsource.com/

Inferno Os https://bitbucket.org/inferno-os/inferno-os/src

Jnode https://www.jnode.org/                                                                                                                                    Lineage Os https://lineageos.org/

Pure Os (Pc Mobil) https://www.pureos.net/

Lune Os https://www.webos-ports.org/wiki/Main_Page

Post Market Os https://postmarketos.org/

Plasma https://www.plasma-mobile.org/

Kai Os https://www.kaiostech.com/

Symbian www.symbianosrg

Tizen https://www.tizen.org/

Sailfish https://sailfishos.org/