What is linux and its benefits

Linux is a operating system that is more secure than windows operating system and normally it is not used at personal level and big agencies or organization use it , keeping in view the security effects of it that provide us .

big example we can take as of virtual university of pakistan which is using linux operating system and as it is more secure but less user friendly and after some time every thing  would be ok and fine

as security matters most than user good graphics as we not seeing second thing linux has also its operating system versions which are now becoming user friendly.