Final answer:
Linux is a community-driven Linux distribution derived from the Red Hat Enterprise Linux codebase.
Step-by-step explanation:
Linux is a community-driven Linux distribution derived from much of the open-source Red Hat Enterprise Linux codebase and other sources. Linux gained popularity due to its free distribution and easy configurability. It became especially popular for running file servers and internet routers, replacing expensive proprietary systems like IRIX, Microsoft NT, and Cisco. Currently, Linux is widely used in various applications, including embedded systems, PCs, and supercomputers. It gained popularity for its free distribution and easy configurability, replacing expensive proprietary systems in various applications.
The community-driven Linux distribution derived from much of the open source Red Hat Enterprise Linux codebase and other sources is called CentOS. In 1991, Linus Torvalds wrote an operating system kernel called Linux, which allowed for an explosion of OS distributions due to its free distribution and configurability. High-profile adoption by PC manufacturers and organizations like NASA, for its cost-effectiveness and powerful capabilities, led to Linux's widespread popularity. Today, it is the operating system of choice for file servers, internet routers, and the systems on the Top-500 supercomputer list.