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GPL License
For personal use only, can be use but cannot be distribute.
MIT License
MIT License permits reuse within proprietary software, provided that all copies of the software or its substantial portions include a copy of the terms of the MIT License and also a copyright notice. It give user the right to use and develop software but user cannon claim as it's own.
License
Example: MIT, BSD, GPL. License is the restrictions of using a code. We need to comply with the terms of licenses. We need to cite sources.
Digital right
The copy right of digital device or codes. For example, no other company can use the name after the name "app store" is used by apple.