A free software is a piece of computer code that can be used devoid of restriction by the first users or by someone else. This can be created by copying this software or changing it, and sharing it in various techniques.

The software flexibility movement was started in the 1980s by Richard Stallman, who was concerned that proprietary (nonfree) software constituted a form of oppression for its users and a violation with their moral privileges. He created a set of 4 freedoms meant for software to be considered free:

1 . The freedom to switch the software.

This is actually the most basic of this freedoms, and it is the one that the free course useful to its users. It is also the freedom that allows a group of users to share their modified release with each other plus the community at large.

2 . The liberty to study the program and know how it works, so that they can make changes to it to match their own needs.

This independence is the one that most of the people consider when they listen to the word “free”. It is the liberty to upgrade with the course, so that it really does what you want it to do or stop performing some thing you don’t like.

three or more. The freedom to distribute clones of your revised versions to others, so that the community at large can benefit from your advancements.

This freedom is the most important with the freedoms, and it is the freedom which enables a free system useful to the original users and to someone else. It is the flexibility that allows several users (or specific companies) to develop true value added versions within the software, which often can serve the needs best malware removal software of a specific subset of the community.