Linux

Today, Linux is one of the most commonly used operating systems in the world, accounting for an estimated 2.76% of all desktop computers and more than 90% of the world's top supercomputers, as well as around 71.85% of all mobile devices that run Android, which is, you guessed it, Linux-based. The Linux community has grown to encompass thousands of developers and users who contribute to the design and maintenance of the operating system.