It's Linux, Mom! Not Lennox.
Lennox is a global corporation  specializing in air conditioning, heating, and commercial refrigeration.  Dave Lennox helped to develop what has been described as the first  riveted-steel furnace in 1895.
His "machine" having come a long  way is amazing in it's own right, but it is not necessarily suited for  business productivity.  While it is surely compatible with outsourced  services, Old Dave's Lennox may not readily lend itself to remote  helpdesk or repair over the internet.
Linux, on the other hand,  is a Unix-like computer operating system which not only fully lends  itself to remote helpdesk, outsourced IT services, and computer repair  over the internet, but can also be used to accomplish those tasks.
Unlike  Lennox hardware, Linux is one of the most prominent examples of free  software  and open source development; its underlying source code can be  freely modified, used, and redistributed by anyone (try that with  Lennox).
Although it had already been around a few years, the  Linux kernel was first released to the public  17 September 1991, for  the Intel x86 PC architecture.
The kernel was augmented with  system utilities and libraries from the GNU project to create a usable  operating system, which later led to an alternate term, GNU/Linux. 
Linux  is now packaged for different uses in Linux distributions, which  contain the sometimes modified kernel along with a variety of other  software packages tailored to different requirements.
Predominantly  known for its use in servers, Linux in gaining more and more popularity  as a desktop operating system garnering the support of corporations  such as IBM, Sun Microsystems, Dell, Hewlett-Packard and Novell.
It  is used as an operating system for a wide variety of computer hardware,  including desktop computers, supercomputers, video game systems  (PlayStation 2 and 3 for example) and embedded devices such as mobile  phones and routers most if not all of which lend themselves readily to  repair over the internet, outsourced repair and even remote helpdesk  services.
1960ish:  A computer operating system known as UNIX was  conceived.
1970:  UNIX was released and widely used, modified  and improved by business, academia, and the government .
1984;   Richard Stallman quits his job at MIT and starts working on the GNU  Project.
1985:  Free Software Foundation, an organization for  creating and promoting free software, is founded by Richard Stallman.
The  GNU manifesto, a statement by Richard Stallman advocating the cause of  free software movement, is published in the March 1985 issue of Dr.  Dobb's Journal
1991:  MINIX was written from scratch by Andrew S.  Tanenbaum, a US-born Dutch professor who wanted to teach his students  the inner workings of a real operating system. It was designed to run on  the Intel 8086 microprocessors that had flooded the world market.
MINIX  was by no stretch of the imagination a supberb operating system.  But  for the first time the source code was available. Anyone who happened to  get the book 'Operating Systems: Design and Implementation' by  Tanenbaum could get hold of the 12,000 lines of code, written in C and  assembly language. For the first time, an aspiring programmer or hacker  could read the source codes of the operating system, which to that time  the software vendors had guarded vigorously.
Following in quick  succession, Linux was first envisaged by a a second year student of  Computer Science at the University of Helsinki and a self-taught hacker,  Linus Torvalds. At the time it was just another hackers hobby. But from  the humble Intel 386 machine of Linus that ran the first kernel, Linux  has come a long way. Its most notable use now is in the field of  massively parallel supercomputing clusters.
Version 0.01 is  released on the Internet in September.
1992: 
January:   First Linux Newsgroup: alt.os.linux founded in the UseNet
April:   Ari Lemmke starts the popular Linux newsgroup comp.os.linux in the  UseNet
November:  Adam Richter announces the release of the first  Linux Distribution from his company: Yggdrasil
1993:
June:   Slackware, the famous Linux distribution is released by Peter  Volkerding
August:  Matt Welsh releases Linux Installation and  getting started: version 1
1994:  Linux kernel version 1.0 is  released in March.
While Lennox has several models, Linux has  many more.  And even though Lennox has been around a lot longer (you  know Dave Lennox died in 1947), Linux has achieved between 50-80% market  share of the web server, render farm, and supercomputer markets and is  growing daily on desktops a feat even old Dave couldn't pull off.
So,  Mom, now do you understand?  Mom!  Mom!
tmm
Source: Free Articles
