STEM与日常科技·英语30篇（2）

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开源软件与许可证的作用

Open source software shares human-readable code publicly so anyone can study, modify, or distribute it freely.
Licenses like MIT, GPL, and Apache define exactly what users may or may not do with that code.
The MIT license allows commercial use, modification, and sublicensing with minimal restrictions.
GPL requires derivative works to remain open source, ensuring shared improvements stay public forever.
Apache adds explicit patent grants, protecting contributors and users from legal claims over embedded inventions.
Without licenses, all code defaults to full copyright—meaning no reuse is legally permitted at all.
Developers choose licenses based on whether they prioritize freedom, collaboration, or control over downstream use.
License compatibility matters: mixing incompatible ones can block legal integration in larger projects.
Companies audit open source licenses before deployment to avoid compliance risks or forced disclosures.
Understanding these rules helps everyone contribute ethically while building secure, scalable tech systems.