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software, started the Free Software movement which is now supported by the Free Software Foundation.
                  Franklin D. Roosevelt’s inspiring speech on the ‘4 Freedoms’ provided Richard Stallman with a framework
                  for initiating ‘Free Software Foundation’.
                  Freeware is a kind of software that is available for use at no cost or for an optional fee, but usually with
                  one or more restricted usage rights. Such software are freely accessible and can be used, copied and
                  distributed freely. But this does not allow the redistribution of its source code.

                  A software is said to be “free software” if the software’s users have the four essential freedoms:
                    Freedom 1:   The freedom to run the program as per the wish of user, for any purpose.

                    Freedom 2:   The freedom to study how the program works and change it to customize for self. Access
                                  to the source code is a precondition for this.
                    Freedom 3: The freedom to redistribute copies or help others to access and use.

                    Freedom 4:  The freedom to distribute the copies of the updated or modified versions to others. By
                                  doing this, the programmer can give the whole community a chance to benefit from the
                                  changes.
                  Open Source Software

                  OSS are those software that are free to be used and whose source code (programmed codes) is also
                  available to make further changes and to customize as per the need of any programmer. Open Source
                  Software (OSS) is computer software that is available with source code which permits the users to study,
                  change and improve and at times also to distribute the software or update source code.
                            Notes

                            Free  and  Open  Source  Software  (FOSS)  can  be  classified  as  both  free  software  and  open  source
                            software i.e., anyone is freely licensed to use, copy, study and change the software in any way and
                            the source code is openly shared so that users or developers are encouraged to voluntarily improve
                            the software.


                  Open Source Software Movement and License
                  Open Source Software are designed by writing codes. Such codes of programs can be utilized by others
                  for new development or for customization as per the requirement. OSS is influenced by OSS Movement.

                  It is a kind of movement that supports, encourages and helps to create awareness for the use of open
                  source licenses software. Programmers who support the open source movement philosophy contribute
                  to the open source community by voluntarily writing and exchanging programming code for software
                  development.
                  An open-source license is a type of license for use of computer software and other products that allows
                  to use, modify and share the source code, the blueprint or design under defined terms and conditions.
                  This allows the developer, end users and commercial companies to review and modify the source code,
                  blueprint or design and use as per the needs.
                  However,  open  source  licenses  may  have  some  restrictions,  particularly  regarding  the  ‘Expression  of
                  Respect’ for the origin of software. While updating, it is expected to mention the name of the authors
                  and to mention a copyright statement within the code and to redistribute the license of newly updated
                  software free of charge only under the original developer/owner’s license.





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