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Is free software and open source software the same? What is the difference between them?

FreeSoftware is software which users can freely:

             Run, for any purpose
             Study and modify for their own needs (requires source code)
             Redistribute copies (charging for them if they wish)
              Improve and release the changes to the public (requires source code)

OpenSource is a style of software licensing and distribution, related to FreeSoftware .

The consumer of an open source program has the rights to do the following things to the source code:
               read it
               use it
              modify it
              distribute it
charge money for services related to it, such as copying or support, so long as they do not infringe on the freedoms of others


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