Final answer:
The key to the success of Linux has been its character as a free software package available under the auspices of the GNU General Public License (GPL).Linux's success is rooted in being free software under the GNU GPL, promoting open collaboration and accessibility for users worldwide.
Step-by-step explanation:
Linux's success lies in being a freely available software governed by the GNU General Public License (GPL). This license ensures users' rights to view, modify, and distribute the source code, fostering a collaborative and open development environment. Initiated by Linus Torvalds in 1991, Linux has thrived due to its community-driven ethos, attracting a global network of contributors.
The GPL ensures that derivative works also remain open source, perpetuating the principle of software freedom. Linux's adaptability, security, and cost-effectiveness have made it a staple in diverse applications, from servers to embedded systems. Its robust foundation and commitment to openness have cultivated a vibrant ecosystem, embodying the spirit of collaborative innovation.