Linus Torvalds is one of the most influential people in the Linux world and among the most active figures that promote open source as a real alternative.
Linus Torvalds is a software engineer and he's responsible for the Linux kernel. Strangely enough, the name of his project wasn't chosen by him. In any case, version 0.01 of Linux was released back in 1991 and has been growing ever since.
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