It’s hard to believe but Linux turns 20 this year.

Back in August 25, 1991, University of Helsinki student Linus Torvalds sent out his famous message:

I’m doing a (free) operating system (just a hobby, won’t be big and professional like gnu) for 386(486) AT clones.

From that simple introduction, we now have an operating system that is in use throughout the world today. It runs on desktops, servers, supercomputers, and mobile phones. And best of all, it’s (still) free.

Linux: you’ve come a long way, baby.

For more information on celebrations commemorating Linux’s 20th year, have a look at Linux Day and Linux Foundation.