Linux
- Linux is a group of open-source Unix-like operating systems developed by Linus Torvalds.
- It is packaged as Linux distributions, with some of the most commonly used distributions being Debian, Fedora, and Ubuntu.
- Written primarily in C language and assembly language.
- The kernel used in Linux is a Monolithic kernel.
- Target systems for Linux distributions include cloud computing, embedded systems, mobile devices, personal computers, servers, mainframe computers, and supercomputers.
- The first version of Linux was launched in 1991.
OS/2
- OS/2 is a series of operating systems developed through the coordination of Microsoft Incorporation and IBM (International Business Machines Corporation).
- Its target systems are personal computers and servers.
- OS/2 is written using C, C++, and assembly language.
- The first version of OS/2 was launched in 1987. It was discontinued in 2006, and after that, it was updated, maintained, and marketed under the name eComStation. In 2015, it was named ArcaOS.
- The kernel used in this operating system is Monolithic with modules.