Difference between revisions of "What Is Linux"

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* Network operating system
 
* Network operating system
  
Strictly speaking, Linux is a [[kernel]]. A [[kernel]] provides access to the computer hardware and control access to resources. The kernel decides who will use a resource, for how long and when. You can download the Linux kernel from the official web site.
+
Strictly speaking, Linux is a [[kernel]]. A [[kernel]] provides access to the computer hardware and control access to resources such as:
 +
* Files and data.
 +
* Running programs.
 +
* Loading programs into memory.
 +
* Networks.
 +
* Security and firewall.
 +
* Other resources etc.
 +
The kernel decides who will use a resource, for how long and when.You can download the Linux kernel from the official web site. However, the Linux kernel itself is useless unless you get all the applications such as [[text editors]], [[email clients]], [[browsers]], [[office applications]], etc. Therefore, someone came up with idea of a [[Linux distribution]]. A typical Linux distribution includes:
  
However, the Linux kernel itself is useless unless you get all the applications such as [[text editors]], [[email clients]], [[browsers]], [[office applications]], etc. Therefore, someone came up with idea of a [[Linux distribution]]. A typical Linux distribution includes:
+
* Linux kernel.
 
+
* GNU application utilities such as text editors, browsers etc.
* Linux kernel
+
* Collection of various GUI (X windows) applications and utilities.
* GNU application utilities such as text editors, browsers
+
* Office application software.
* GUI (X windows)
+
* Software development tools and compilers.
* Office application software
+
* Thousands of ready to use application software packages.
* Software development tools and compilers
+
* Linux Installation programs/scripts.
* Thousands of ready to use application software packages
+
* Linux post installation management tools daily work such as adding users, installing applications, etc.
* Linux Installation programs/scripts
+
* And, glued together by the shell.
* Linux post installation management tools daily work such as adding users, installing applications, etc
 
  
 
Corporate and small businesses users need support while running Linux, so companies such as [[Red Hat]] or [[Novell]] provide Linux tech-support and sell it as product. Nevertheless, community driven Linux distributions do exist such as [[Debian]], [[Gentoo]] and they are entirely free. There are over 200+ Linux distributions.
 
Corporate and small businesses users need support while running Linux, so companies such as [[Red Hat]] or [[Novell]] provide Linux tech-support and sell it as product. Nevertheless, community driven Linux distributions do exist such as [[Debian]], [[Gentoo]] and they are entirely free. There are over 200+ Linux distributions.
  
 
[[Category:Introduction to Shells]]
 
[[Category:Introduction to Shells]]

Revision as of 11:03, 12 September 2009

Linux is a free open-source operating system based on Unix. Linus Torvalds originally created Linux with the assistance of developers from around the world. Linux is:

  • Free
  • Unix Like
  • Open Source
  • Network operating system

Strictly speaking, Linux is a kernel. A kernel provides access to the computer hardware and control access to resources such as:

  • Files and data.
  • Running programs.
  • Loading programs into memory.
  • Networks.
  • Security and firewall.
  • Other resources etc.

The kernel decides who will use a resource, for how long and when.You can download the Linux kernel from the official web site. However, the Linux kernel itself is useless unless you get all the applications such as text editors, email clients, browsers, office applications, etc. Therefore, someone came up with idea of a Linux distribution. A typical Linux distribution includes:

  • Linux kernel.
  • GNU application utilities such as text editors, browsers etc.
  • Collection of various GUI (X windows) applications and utilities.
  • Office application software.
  • Software development tools and compilers.
  • Thousands of ready to use application software packages.
  • Linux Installation programs/scripts.
  • Linux post installation management tools daily work such as adding users, installing applications, etc.
  • And, glued together by the shell.

Corporate and small businesses users need support while running Linux, so companies such as Red Hat or Novell provide Linux tech-support and sell it as product. Nevertheless, community driven Linux distributions do exist such as Debian, Gentoo and they are entirely free. There are over 200+ Linux distributions.