Linux is a computer operating system.
Linus Torvalds was a student at the University of Helsinki
Linus developed Linux as part of his thesis in 1991.
Some people pronounce it as “laai-nix”
The proper way would be closer to “lee-noeks” but it really isn’t important at all.
You may have been using it all along!
It can be found in many gadgets and appliances such as:
GPS navigation systems
Mobile phones (including Android ones)
Your car’s “black box” and management systems
Linux is open source software and, in most cases, also Freeware.
It is extremely stable, almost 99% safe from malware attacks and it comes with a good built-in firewall as well.
Linux is easy to learn and use, especially when you use distro’s such as Mint or Zorin.
Linux does offer the alternative of complex, challenging computing for users who like fiddling under the hood, through distro’s such as Archlinux, Slackware, etc.
If you are a beginner, or a former Windows user just needing a computer that works, then use Zorin or Mint. You will most likely find it easier to use than, for instance, Windows 8 or 8.1! While it is as light as Windows XP, it is endlessly more stable and pleasant to use.