UNIX is an operating system developed in 1969 by AT&T employees which includes Denis Ritchie, Ken Thompson and Brian Kernighan at Bell Laboratories. The UNIX which we use today has evolved from UNICS(UNIplexed Operating & Computing System) which is considered to be the very first version of UNIX.

UNIX was ported to different architectures, which then was distributed among different colleges and universities for a very small amount of fees, so that it gets encouraged. Slowly it started gaining popularity by a large number of students who later joined companies where they influenced the choice of operating system fo the usage in their respective companies ant thus helped UNIX to gain wide acceptance among both students and professionals.

As UNIX was distributed in the form of source code, it has resulted in many offshoots, but there are mainly two base version available.

  • AT&T System V
  • Berkley Software Distribution (BSD)
Most of the UXIX flavours today are build onj one of these two flavours. The difference between these two version is
  • number of utilities available
  • their switches
  • implementation of file structure
A normal user won't find much difference.

The Linux Foundation is a non-profit consortium dedicated to fostering the growth of Linux. Founded in 2007, The Linux Foundation sponsors the work of Linux creator Linus Torvalds and is supported by leading Linux and open source companies and developers from around the world.

Linux powers :-

  • Railway and Air traffic control system
  • 1.3M smart phones
  • Nuclear Planes, Submarines
  • Many more embedded and Real time systems

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