# GNU

> Unix-like operating system

**Wikidata**: [Q44571](https://www.wikidata.org/wiki/Q44571)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/GNU)  
**Source**: https://4ort.xyz/entity/gnu

## Summary
GNU is a Unix-like operating system developed by the GNU Project, which was founded by Richard Stallman. It is known for being a free software operating system, meaning users have the freedom to run, copy, distribute, study, change, and improve the software. The name "GNU" is a recursive acronym for "GNU's Not Unix."

## Key Facts
*   GNU was conceived by the GNU Project, which was founded on September 27, 1983.
*   It is classified as a Unix-like operating system, behaving similarly to Unix systems.
*   Richard Stallman, an American software freedom activist and computer programmer, is the creator of GNU.
*   The official name, "GNU's not UNIX," is a recursive acronym.
*   Key components of GNU include GNU Bash, Linux-libre, and the GNU Compiler Collection.
*   GNU software is typically licensed under the GNU General Public License or GNU Lesser General Public License.
*   The project is associated with the free software movement.
*   Its mascot is a GNU, a type of wildebeest.

## FAQs
### Q: What is GNU?
A: GNU is a Unix-like operating system developed by the GNU Project. It is designed to be entirely free software, providing users with the freedom to use, modify, and distribute its components.

### Q: Who created GNU?
A: GNU was created by Richard Stallman, an American software freedom activist and computer programmer. It was developed under the umbrella of the GNU Project, which he founded.

### Q: What does "GNU" stand for?
A: "GNU" is a recursive acronym that stands for "GNU's Not Unix." This name signifies its Unix-like functionality while emphasizing that it is not Unix itself.

### Q: What is the primary goal of GNU?
A: The primary goal of GNU is to provide a complete, free Unix-like operating system. It aims to ensure that users have the four essential freedoms: to run, study, redistribute, and improve the software.

## Why It Matters
GNU holds immense significance as a foundational project in the free software movement. Its inception in 1983 by Richard Stallman marked a pivotal moment, aiming to create a complete operating system composed entirely of free software. This initiative provided a crucial alternative to proprietary operating systems, fostering an ecosystem where users could control their computing environment rather than being restricted by vendor-locked solutions. By developing essential tools like the GNU Compiler Collection (GCC) and the GNU Bash shell, the GNU Project laid much of the groundwork for what would become widely adopted free operating systems, most notably in conjunction with the Linux kernel (forming GNU/Linux). Its commitment to the GNU General Public License (GPL) has profoundly influenced software licensing, ensuring that derivative works also remain free. GNU's existence has empowered countless developers and users, promoting collaboration, transparency, and user freedom in the digital realm.

## Notable For
*   **Pioneering Free Software:** GNU was one of the earliest and most ambitious projects dedicated to creating a complete operating system entirely from free software, predating many other open-source initiatives.
*   **Recursive Acronym Name:** Its name, "GNU's Not Unix," is a famous example of a recursive acronym, highlighting its Unix-like nature without being actual Unix.
*   **Foundation of GNU/Linux:** Many core components of the widely used GNU/Linux operating systems (like the GCC compiler and Bash shell) were developed by the GNU Project.
*   **Influence on Licensing:** The GNU General Public License (GPL), developed for GNU software, became a cornerstone of the free and open-source software movement, ensuring software freedom for users.
*   **Comprehensive System:** GNU aims to be a complete operating system, including its own kernel (Hurd), compilers, utilities, and applications, offering a full alternative to proprietary systems.

## Body

### Definition and Classification
GNU is a Unix-like operating system. It is an instance of an operating system and is specifically a subclass of Unix-like operating systems. The raw description defines it as an "operating system that behaves in a manner similar to a Unix system."

### Origin and Development
GNU was created by Richard Stallman, an American software freedom activist, short story writer, and computer programmer. The GNU Project, a free software project, developed GNU, with its inception dating back to September 27, 1983. The GNU Project is also the developer of GNU.

### Components
GNU comprises various parts, including:
*   GNU Bash
*   Linux-libre
*   GNU Compiler Collection
*   GNU Shepherd
*   Hurd
*   LibreJS
*   GNUbik
*   GNU IceCat
*   GNU Guile
*   MediaGoblin

### Licensing
GNU software is primarily licensed under the GNU General Public License and the GNU Lesser General Public License.

### Naming
The official name of GNU is "GNU's not UNIX." The name "GNU" is also derived from the wildebeest, and the term itself is a recursive acronym.

### Related Entities
*   **Operating system:** Software that manages computer hardware resources.
*   **GNU/Hurd:** The GNU operating system based on the Hurd kernel.
*   **GNU variants:** Operating systems based on GNU.

### Competitors and Alternatives
GNU competes with or serves as an alternative to various operating systems, including:
*   Microsoft Windows (family of computer operating systems developed by Microsoft)
*   Windows 7 (personal computer operating system by Microsoft, released in 2009)
*   OpenBSD (security-focused Unix-like operating system, inception 1995-10-18)
*   Windows NT 4.0 (pre-emptive, graphical operating system by Microsoft, inception 1996-07-31)
*   Windows 3.0 (third major release of Microsoft Windows, inception 1988)
*   FreeBSD (free Unix-like operating system, inception 1993-11-01)
*   BeOS (operating system designed for multimedia, personal desktop use, and multiprocessor computers, inception 1995-10-01)
*   Windows 95 (personal computer operating system by Microsoft, inception 1995-08-24)
*   Windows Server 2008 (version of the Windows Server line of server operating systems, inception 2008-12-12)

### Technical Details
*   **Logo:** https://commons.wikimedia.org/wiki/Special:FilePath/Heckert_GNU_white.svg
*   **Website:** https://gnu.org (preferred, English), https://www.gnu.org/home.fr.html (French), https://www.gnu.org/home.it.html (Italian)
*   **Mascot:** GNU
*   **Movement:** Free software movement
*   **Package Management System:** GNU Guix
*   **Subreddit:** r/gnu (English, started 2008-01-25)
*   **IRC Channel URL:** irc://irc.freenode.net/#gnu
*   **Significant Event:** GNU Manifesto (March 1, 1985)
*   **Copyright Status:** Copyrighted

```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "GNU",
  "description": "A Unix-like operating system developed by the GNU Project, known for being free software.",
  "url": "https://gnu.org",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q34135",
    "https://en.wikipedia.org/wiki/GNU"
  ],
  "additionalType": "https://schema.org/OperatingSystem",
  "creator": {
    "@type": "Person",
    "name": "Richard Stallman"
  },
  "developer": {
    "@type": "Organization",
    "name": "GNU Project"
  },
  "dateCreated": "1983-09-27",
  "license": "GNU General Public License",
  "image": "https://commons.wikimedia.org/wiki/Special:FilePath/Heckert_GNU_white.svg"
}

## References

1. [Licenses - GNU Project - Free Software Foundation. Free Software Foundation](https://www.gnu.org/licenses/licenses.html)
2. Quora
3. KBpedia
4. [Source](https://lists.gnu.org/mailman/listinfo/gnu-system-discuss)