In 25th of August, 1991 the history of Linux has begun with a post to the MINIX newsgroup by Linus Torwalds: “Hello everybody out there using minix – I’m doing a (free) operating system (just a hobby, won’t be big and professional like gnu) for 386(486) AT clones. … PS. Yes – it’s free of any minix code, and it has a multi-threaded fs. It is NOT protable (uses 386 task switching etc), and it probably never will support anything other than AT-harddisks, as that’s all I have .” (http://www.cs.cmu.edu/~awb/linux.history.html, 2009). Some years has passed, so now we can say, that those words changed the history of computing. » Read more: Linux operating system