On 25 August 1991, Linus at age 21 announced Linux project/system in a Usenet posting to the newsgroup. Here is original email that changed IT world forever. Happy Birthday, #Linux kernel.
@nixCraft
...and it probably never will support anything other than AT-Hartdisks...
(looks at his android phone) Ah, well...
and it probably never will support anything other than AT-harddisks, as that's all I have :-(.
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His OS is what every Scientist's equipment runs on now.