The free software is the name of the software (logical equipment or software of a computer, and includes all necessary software components to enable specific tasks) that respects freedom of users on the product purchased and, therefore, once obtained can be used, copied, studied, changed and redistribute.
"Free software is a matter of liberty, not price. To understand the concept, you should think of "free" as in "free speech", not as in "free beer."
More precisely, it refers to four freedoms of software users:
* The freedom to run the program any purpose (freedom 0 ).
* Freedom of study how the program works, and adapt to the needs ( freedom 1). Access to the source code is a precondition for this.
* Freedom of redistribute copies so you can help others ( freedom 2).
* Freedom of improve the program and make public improvements, so that all community benefits (freedom 3 ). Just as freedom 1 access to source code is a prerequisite.
The GNU Project was launched in 1984 to develop a complete Unix-like operating system free software.
Linux is an operating system, free and freely distributable, inspired by the UNIX system for PCs (Personal Computer) based on Intel architectures.
This "alternative" was initially written by a student of computer belonging to the University of Helsinki (Finland) named Linus Torvalds and subsequently developed and followed by hundreds of programmers around the world. This system born following a Linus idea of \u200b\u200bcreating a UNIX clone which had no commercial software as well as anyone could enjoy freely.
The combination of GNU and Linux is the operating system GNU / Linux , now used on millions of computers. Sometimes this combination is incorrectly named Linux. There are many variants or "distributions" of GNU / Linux. The distributions of GNU / Linux are fully formed by free software.
is also a system that can coexist with other operating systems: This system does not create any conflict with the possibility of wanting to choose and install different operating systems on one disc.
Programs that use the open source system: Linux, Wordpress, Mozilla, Drupal, MySQL, VideoLAN, Gimp .
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