Linux and Unix
The emergence of Linux is closely related to the evolution of UNIX, “Penguin” is a clone of it, and thus inherited many of his traits. The real affirmation of UNIX computing world took place in 1971, when the first edition appeared dedicated servers, it was the promoter of other operating systems, today famous, that is developed by Sun Microsystems Solaris, FreeBSD Berkeley and IRIX from Silicon Graphics of those. In 1975 was released a version of UNIX rewritten in C and Assembler, the two languages becoming a standard for writing programs for these platforms.
However the absence of a character named Richard Stallman, Linux was not what we know today, even though the 80s nobody thought of this operating system appearance. Stallman began his career in 1970 at the famous Artificial Intelligence Laboratory of MIT, creating emacs editor, well known worldwide, it was available to all interested persons are free. The ’80s was known for large software companies that wanted to protect their investments, thus trying to sign various contracts with their employees not to disclose the source code of developed products. Stallman did not agree with this attitude and in 1985 published the manifesto GNU (GNU is Not UNIX – Romanian version can be viewed at http://www.gnu.org/home.ro.html) that gave rise concept of open source. The principle was simple and was quickly adopted by supporters of Stallman: Software source code should be accessible to everyone, to allow various developers around the world to change and improve, possibly correcting some programming errors. He later appeared GPL (GNU General Public License), a license “anti-copyright” that reinforce the status of open source. Many programmers and supported him in 1984 they founded the GCC compiler development program (GNU C Compiler), a true value at that time. The source code is available under the GPL license, often free versions of UNIX applications eventually hold fewer errors and be even better.
