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1. • • The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses, or copyleft, that guarantee end users the four freedoms to run, study, share, and modify the software.
     en.wikipedia.org › wiki › GNU_General_Public_License

     GNU General Public License - Wikipedia

2. Top results related to what is a free and open-source software license?

   • What is the purpose of a license for open-source or free-software?

     Top Answer

     Answered May 23, 2017 · 2 votes

     My question is, what is the purpose of a license for such code?

     The purpose of a license is that you have a document where it is written down which rights you grant with your copyrightable work (software can fall under copyright).

     This helps users of your software to understand which rights they have with the software.

     A Free Software License allows users to use, study, share and improve your software. This is the same for those Approved Licenses listed on the website of the Open Source Initiative.

     So without a license you do not give many rights. A license clarifies which rights are granted. This is the first benefit for you: Users of your software don't need to ask you first.

     Does it stop them from using it?

     No, a license is not stopping from using it. At least normally not. A license grants the rights needed to make use of the software therefore its actually the opposite.

     Or if they can still use it, does it (the license) benefit me in any way?

     What do you mean by still use it? They can use the software if you provide a (known) software license. The benefit for you is that you tell so it's clear what you give.

     If yes, in what ways?

     For example by clarifying that you provide the software AS-IS without warranties of some kind. If you look into the licenses you find a passage about exactly that.

     If I don't use any license for my source-code, is that a bad idea? To put it differently, would I regret in future if I don't use any license for my source-code which I release to the public?

     Yes, this is generally a bad idea because you more or less do not tell your users which rights they've got with the software. That can have negative influence on usage patterns and contribution patterns. That's something you might regret in the future.

     See as well:

     • Can I use the code in a Github project which does not have a license specified?

     This is a good book available online which goes through a lot of stuff step-by-step, for example Choosing a License and Applying It - The book is called Producing Open Source Software How to Run a Successful Free Software Project by Karl Fogel.

     And this is one of the best essays that basically tells nearly everything: Make Your Open Source Software GPL-Compatible. Or Else. by David A. Wheeler Released 2002-05-06, revised 2013-01-18 - it has a lot of very good links as well.

     Check all answers on Stack Overflow

     1/5

   • What is a good free (open source) BLAS/LAPACK library for .net (C#)?

     Top Answer

     Answered Sep 21, 2009 · 12 votes

     AMD's ACML is a free download, but it is binary only, not open source, and native code, not .NET.

     Performance is generally superior to the Netlib.org code, and generally roughly the same as Intel's MKL -- which is not free IIRC.

     The download includes one sample that demonstrates how to bind it to C#. Not any different from calling any other C or C++ library from C#.

     Library implements BLAS, LAPACK, FFTs, and RNGs.

     http://developer.amd.com/cpu/Libraries/acml/downloads/pages/default.aspx

     EDIT TO RESPOND TO COMMENT:

     On an Intel CPU, AMD's ACML will perform approximately as well as Intel's MKL, but it depends on the algorithm, matrix sizes, number of cores, memory topology and speed, etc. etc. etc. Your mileage may vary. The only way to tell for sure is to run your own benchmark. In some cases, ACML is faster than MKL even on Itel hardware.

     Either one will be significantly faster than any "naive" implementation for large matrixes. Both are architected to use multiple threads on multicore processors, and have hand-tweaked assembly language kernels and a lot of tuning for the cache behaviours on various machines.

     For small matrixes, performance is generally a don't-care, since any modern cpu can solve a small matix in just a few milliseconds, even using the simplest code. In that case, you're only using a library to avoid writing and debugging code that has been written hundreds of times already.

     Check all answers on Stack Overflow

     2/5

   • Software Freedom in FOSS (Free and open-source software)

     Free Software or Libre (Libre is the most common Spanish adjective for “free”) software are the softwares that allows user to do to any kind of work he/she wants as well as he can modify, add new features and he has freedom to distribute the changed version also. A software is said to be free if it gives user ultimate freedom to do things the way he wants.

     The term “free software” is sometimes misunderstood—it has nothing to do with price. It is about freedom. Here, therefore, is the definition of free software: a program is free software, for you, a particular user, if:

     Examples: The Free Software Directory maintains a large database of free-software packages. Some of the best-known examples include the Linux kernel, the BSD and Linux operating systems, the GNU Compiler Collection and C library; the MySQL relational database; the Apache web server; and the Sendmail mail transport agent.

     Check all answers on Geeksforgeeks

     3/5

   • Software Freedom in FOSS (Free and open-source software)

     Free Software or Libre (Libre is the most common Spanish adjective for “free”) software are the softwares that allows user to do to any kind of work he/she wants as well as he can modify, add new features and he has freedom to distribute the changed version also. A software is said to be free if it gives user ultimate freedom to do things the way he wants.

     The term “free software” is sometimes misunderstood—it has nothing to do with price. It is about freedom. Here, therefore, is the definition of free software: a program is free software, for you, a particular user, if:

     Examples: The Free Software Directory maintains a large database of free-software packages. Some of the best-known examples include the Linux kernel, the BSD and Linux operating systems, the GNU Compiler Collection and C library; the MySQL relational database; the Apache web server; and the Sendmail mail transport agent.

     Check all answers on Geeksforgeeks

     4/5

   • What is a good cms that is postgres compatible, open source and either php or python based?

     Top Answer

     Answered Oct 22, 2012 · 1 votes

     Have you tried Drupal. Drupal supports PostgreSQL and is written in PHP and is open source.

     Check all answers on Stack Overflow

     5/5

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3. People also ask

   What is open source software?

   • Open Source Software is something that you can modify as per your needs, and share with others without any licensing violation burden. When we say Open Source, the source code of the software is available publicly with Open Source licenses like GNU (GPL) which allows you to edit the source code and distribute it.

   Difference between Free Software and Open Source Software

   www.geeksforgeeks.org/difference-between-free-software-and-open-source-software/

   See all results for this question

   What is the difference between free software and open source software?

   • Both free software and open source software are often distributed under open licenses, allowing users to use, modify, and distribute the software without restrictions. 1. It was coined by the Free Software Foundation in the 1980s. In response to the restrictions of free software, the phrase “open source” was coined in the late 1990s. 2.

   Difference between Free Software and Open Source Software

   www.geeksforgeeks.org/difference-between-free-software-and-open-source-software/

   See all results for this question

   What is a free software license?

   • The license was the first copyleft for general use, and was originally written by Richard Stallman, the founder of the Free Software Foundation (FSF), for the GNU Project. The license grants the recipients of a computer program the rights of the Free Software Definition.

   GNU General Public License - Wikipedia

   en.wikipedia.org/wiki/GNU_General_Public_License

   See all results for this question

   Is open-source software free?

   • Every open-source software is not free software. 6. There is no such issue that exists in free software. There are many different open-source software licenses, and some of them are quite restricted, resulting in open-source software that is not free. 7. No restrictions are imposed on free software.

   Difference between Free Software and Open Source Software

   www.geeksforgeeks.org/difference-between-free-software-and-open-source-software/

   See all results for this question

4. www.geeksforgeeks.org › difference-between-freeDifference between Free Software and Open Source Software

   www.geeksforgeeks.org › difference-between-free

   • Cached

   May 23, 2024 · Free software and open-source software are two distinct concepts, each with its own strengths and weaknesses. Free software is developed with the goal of promoting freedom and giving users complete control over the software they use.

5. en.wikipedia.org › wiki › Open-source_softwareOpen-source software - Wikipedia

   en.wikipedia.org › wiki › Open-source_software

   • Cached

   19 hours ago · Under Perens' definition, open source is a broad software license that makes source code available to the general public with relaxed or non-existent restrictions on the use and modification of the code. It is an explicit "feature" of open source that it puts very few restrictions on the use or distribution by any organization or user, in order ...

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7. opensourcecollection.com › blog › understandingUnderstanding Software Licenses: Open-Source vs Commercial

   opensourcecollection.com › blog › understanding

   • Cached

   May 14, 2024 · There are significant differences between open-source and commercial software, each having advantages and disadvantages. Commercial software is usually closed, costly, and subject to strict control; in contrast, open-source software is usually free, open, and collaborative.

8. en.wikipedia.org › wiki › GNU_General_Public_LicenseGNU General Public License - Wikipedia

   en.wikipedia.org › wiki › GNU_General_Public_License

   • Cached

   1 day ago · Historically, the GPL license family has been one of the most popular software licenses in the free and open-source software (FOSS) domain. Prominent free software programs licensed under the GPL include the Linux kernel and the GNU Compiler Collection (GCC).

9. licensespring.com › blog › guideOpen-Source Software Development: LicenseSpring’s Ultimate Guide

   licensespring.com › blog › guide

   • Cached

   May 29, 2024 · What is the distinction between free software and open-source software? Free software focuses on user freedoms, while open-source emphasizes collaborative development and transparency. Can I use open-source software for commercial purposes? The majority of open-source software licenses allow commercial use, such as the MIT license, enabling ...

10. opensourcecollection.com › blog › 7-software-license7 Software License Types Explained - opensourcecollection.com

    opensourcecollection.com › blog › 7-software-license

    • Cached

    May 24, 2024 · One of the most popular open-source licenses is the GNU General Public License (GPL), which was created by the Free Software Foundation (FSF). By guaranteeing that derivative works based on GPL-licensed software remain open source, the GPL embraces the idea of copyleft.

11. www.hostingadvice.com › what-does-open-source-meanWhat Does "Open Source" Mean? An In-Depth Explanation

    www.hostingadvice.com › what-does-open-source-mean

    • Cached

    May 14, 2024 · The term open source refers to a type of software that, under an open-source license, lets anyone use, change, and distribute the software. The developer of the software releases it to the community to achieve a collaborative development environment.