Precursors
The Unix operating system was conceived and implemented in 1969, at AT&T's Bell Labs, in the United States by Ken Thompson, Dennis Ritchie, Douglas McIlroy, and 詳細

The primary difference between Linux and many other popular contemporary operating systems is that the Linux kernel and other components are free and open-source software. Linux is not the only such operating system, although it is by far the most widely used. Some 詳細

Many quantitative studies of free/open-source software focus on topics including market share and reliability, with numerous studies specifically examining Linux. The Linux market … 詳細

Many developers of open-source software agree that the Linux kernel was not designed but rather evolved through natural selection. … 詳細

The Linux kernel is a widely ported operating system kernel, available for devices ranging from mobile phones to supercomputers; it runs on a highly diverse range of computer architectures, including ARM-based Android smartphones and the 詳細

The Linux kernel is licensed under the GNU General Public License (GPL), version 2. The GPL requires that anyone who distributes software … 詳細

• Free and open-source software portal
• Linux portal
• Comparison of Linux distributions
• Comparison of open-source and closed-source software 詳細