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  2. History of free and open-source software - Wikipedia

    en.wikipedia.org/wiki/History_of_free_and_open...

    In the 1950s and 1960s, computer operating software and compilers were delivered as a part of hardware purchases without separate fees. At the time, source code, the human-readable form of software, was generally distributed with the software providing the ability to fix bugs or add new functions. [1] Universities were early adopters of ...

  3. Source code - Wikipedia

    en.wikipedia.org/wiki/Source_code

    Source code is the form of code that is modified directly by humans, typically in a high-level programming language. Object code can be directly executed by the machine and is generated automatically from the source code, often via an intermediate step, assembly language. While object code will only work on a specific platform, source code can ...

  4. Comparison of free and open-source software licenses

    en.wikipedia.org/wiki/Comparison_of_free_and...

    The Open Source Initiative (OSI) is one such organization keeping a list of open-source licenses. [1] The Free Software Foundation (FSF) maintains a list of what it considers free. [2] FSF's free software and OSI's open-source licenses together are called FOSS licenses. There are licenses accepted by the OSI which are not free as per the Free ...

  5. Academia.edu - Wikipedia

    en.wikipedia.org/wiki/Academia.edu

    Academia, Inc. Academia.edu is a for-profit open repository of academic articles free to read by visitors. Uploading and downloading is restricted to registered users. Additional features are accessible only as a paid subscription. Since 2016 various social networking utilities have been added.

  6. History of compiler construction - Wikipedia

    en.wikipedia.org/wiki/History_of_compiler...

    The most common reason for transforming source code is to create an executable program. Any program written in a high-level programming language must be translated to object code before it can be executed, so all programmers using such a language use a compiler or an interpreter. Improvements to a compiler may lead to a large number of improved ...

  7. Comparison of open-source and closed-source software

    en.wikipedia.org/wiki/Comparison_of_open-source...

    A license, whether providing open-source code or not, that does not stipulate the "four software freedoms", [3] are not considered "free" by the free software movement. A closed source license is one that limits only the availability of the source code. By contrast a copyleft license claims to protect the "four software freedoms" by explicitly ...

  8. Open source - Wikipedia

    en.wikipedia.org/wiki/Open_source

    Open Source Initiative logo. Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, [1] design documents, [2] or content of the product. The open-source model is a decentralized software development model that encourages open collaboration.

  9. Open access - Wikipedia

    en.wikipedia.org/wiki/Open_access

    Open access logo, originally designed by Public Library of Science. A PhD Comics introduction to open access. Open access ( OA) is a set of principles and a range of practices through which research outputs are distributed online, free of access charges or other barriers. [1]