GNU, linux, Apache

GNU


GNU is a Unix-like operating system created and funded by the Free Software Foundation. One of the goals of the Free Software Foundation was an operating system composed entirely of free software. Many pieces, such as shells, utilities, and compilers were created for this purpose. The GNU operating system has yet to be fully completed, due to slow development and debates about design goals. Most of the programs created for GNU have been ported to other softwares and operating systems, most notably Linux. 


To learn more visit http://www.gnu.org/




Linux

 Linux is a software that was designed to provide personal computer users a free or very low-cost operating system comparable to traditional and usually more expensive systems. Linux is a very fast-performing system which provides many feautures already avalible on other systems. To complete the operating system, team members made use of system components developed by members of the for the GNU Project. A great resource that comes with Linux is that Linux users form a tight community. There are numerous chat rooms, mailing lists and discussion forums with many knowledgeable people who can help you with your problems.


For more information on Linux visit http://www.linux-es.org/




Apache

Apache is a public domain Web server developed by a loosely knit group of programmers. Public domain refers to any program that is not copyrighted. Public-domain software is free and can be used without restrictions.Because it was developed from existing NCSA code plus various patches, it was called a patchy server - hence the name Apache Server.

As a result of its sophisticated features, excellent performance, and low price (it's free), Apache has become the world's most popular Web server. By some estimates, it is used to host more than 50% of all Web sites in the world.The original version of Apache was written for UNIX, but there are now versions that run under OS/2, Windows and other platforms. Apache is a large sucess, considering that the Apache Group isn't even a company. Instead, it's a group of contributors who propose and approve changes to the code by voting.

For more information visit http://www.apache.org/