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4 Facts about Linux.
(1) The operating system is free.
(2) Nearly 12,000 developers from more than 1,200 companies have contributed to the Linux kernel since tracking began 10 years ago.
(3) Linux runs on just about any hardware from mobile phones to supercomputers.
(4) Linux powers the New York
Stock Exchange, NASA, and the Large Hadron Collider among many other things.