On August 25, 1991, Linus Torvalds, then a Finnish graduate student, posted a message on the Usenet group comp.os.minix, announcing his work on a new operating system. He described it as "a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones."
What began as a hobby project with roughly 10,000 lines of code has expanded significantly over 35 years. Today, the Linux kernel contains 40 million or more lines of code. This growth has been supported by hundreds of maintainers and thousands of contributors.
Despite Torvalds' initial modest outlook, Linux has become a dominant force in global infrastructure. It powers a wide range of devices, from smartphones and embedded systems to supercomputers, and is a competitive open-source alternative to proprietary software.
In 1991, Unix was an important but secondary operating system for x86 architecture. Torvalds' project, initially considered a "Minix-like" OS, was almost named "Freax" but was ultimately distributed as Linux. Torvalds himself acknowledges multiple potential "birthdays" for Linux, with the August 25th newsgroup post being the most publicly documented.
Linus Torvalds continues to work on Linux, and early developers from its inception are still involved. The operating system's development has been instrumental in moving computing forward, providing a free and open-source foundation for various technologies.
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Linux, initially announced by Linus Torvalds 35 years ago, has grown from a hobby operating system with 10,000 lines of code to a dominant force in global infrastructure with over 40 million lines. This milestone highlights its evolution into a competitive open-source alternative used across servers, mobile devices, and embedded systems.
Linus Torvalds' initial public announcement of his hobby operating system, which would become Linux, occurred 35 years ago on August 25, 1991. This milestone marks the beginning of an operating system that has significantly impacted the technology world, despite Torvalds' initial modest expectations.