system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Tell me whether these operation systems are open-source of proprietary; Ubuntu, iOS , Debian, Fedora, CentOS, macOS, Open Suse, Windows


assistant
Definitely I can do that. Ubuntu, Fedora, Debian, CentOS and Open Suse are open-source operating systems. On the other hand, Windows, macOS and iOS are proprietary.