Portal:Linux/Selected article/1

The Linux kernel is a free and open-source, UNIX-like kernel that is used in many computer systems worldwide. The kernel was created by Linus Torvalds in 1991 and soon after was adopted as the kernel for the GNU operating system (OS) which was created to be a free replacement for Unix.

Since the late 1990s, it has been included in many operating system distributions, many of which are called Linux. A notable Linux kernel operating system is Android which is used in many mobile and embedded devices. (Full article...)