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All Linux releases with an even minor version number (the second component) are part of a stable series: 1.0.x, 1.2.x, 2.0.x, 2.2.x, 2.4.x and the current 2.6.x releases with an odd minor version number, such as the 2.5.x series, are development versions not intended for production use. Torvalds has continued to release new versions of the kernel, consolidating contributions from other programmers and making changes of his own. the idea that Torvalds wrote or coordinates other parts of the system than the kernel. People often confuse the kernel with the operating system, leading to many mistaken notions, e.g. A complete system built around the Linux kernel is commonly known as the Linux operating system, although some prefer to call the system GNU/Linux and there is some controversy on the point. A kernel is not a complete operating system (as the term is usually understood). The term "kernel" properly refers to the low-level system software that provides a hardware abstraction layer, disk and filesystem control, multi-tasking, load-balancing, networking and security enforcement. Originally, "Linux" was only the name of the kernel. Early on, Minix hackers contributed code and ideas to the Linux kernel, and today it has received contributions from thousands of programmers. This left a space for the Linux kernel to fill, and despite the limited functionality of the early versions it rapidly accumulated developers and users. The BSD operating system had not yet freed itself from legal encumberances. "I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu ) for 386 ( 486 ) AT clones." ()Īt the time, the GNU project had created many of the components required for a free operating system, but its own kernel, the GNU Hurd, was incomplete and unavailable. The project was launched in 1991 with a famous post to the Usenet newsgroup comp.os.minix that includes this sentence: Distributions of software based on this kernel are called Linux distributions. ![]() The kernel is best known as the core of Linux operating systems. ĭeveloped under the GNU General Public License, the source code for Linux is free software. It is written almost entirely in C with some GNU C language extensions and AT&T assembly language. It was originally developed for the Intel 80386 processor but has since been ported to many other platforms. ![]() In computing, the Linux kernel is a free Unix -like operating system kernel created by Linus Torvalds in 1991 and subsequently improved with the assistance of developers around the world. The Linux mascot Tux created by Larry Ewing.
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