Linux is the best-known and most-used open source operating system. In many ways, Linux is similar to other operating systems you may have used before, such as Windows, OS X, or iOS. Linux is also different in that, even if the core pieces of the Linux operating system are usually common, there are many distributions of Linux, which include different software options.

Who uses Linux

If you use an operating system you are currently using really work “just fine” Or are you constantly battling viruses, malware, slow downs, crashes, costly repairs, and licensing fees?
If you thrash about with the above, and want to free yourself from the constant fear of losing data or having to take your computer in for the “yearly clean up,” Linux might be the perfect platform for you.
Companies and individuals choose Linux for their servers because it is protected, and you can obtain excellent support from a large society of users, in addition to companies like Canonical, SUSE, and Red Hat, which offer commercial support.
What is a “distribution?"
Linux has a number of different versions to suit nearly any type of user. From new users to hard-core users, you’ll find a “flavor” of Linux to match your needs. These versions are called distributions
The most popular Linux distributions are:
Ubuntu Linux
Linux Mint
Arch Linux
Deepin
Fedora
Debian
openSUSE.
every distribution has a different take on the desktop.

How was Linux created

Linux was created in 1991 by Linus Torvalds, a then-student at the University of Helsinki. Torvalds built Linux as a free and open source substitute to Minix, another Unix clone that was mostly used in academic settings.

Hello and welcome to LQ.

..and lifted almost verbatim from:
https://www.linux.com/what-is-linux

Planning on spamming us, shivkumar4???

there's already a user "shivkumar" and shivkumar_love4linux", but i could not find any of their posts.

Greetings (unless you are a spammer) shivkumar4.

This Thread probably should be [considered] 'Closed', since OP was banned for subsequent similar post ('Closed' in security).

Just last night, I read something about how spammers post garbage to forums, blogs, etc., to (somehow Idk) get higher search-rank ratings.

#3 is likely insightful wisdom, not (just) a psychic prediction

Don't tell us - we already know - tell the unenlightened!