What is Linux

Linux, or GNU/Linux, is an “open source” operating system, which means that it is freely distributed or free. This was developed by enthusiastic volunteers, but its stability and good performance have led many large companies to prefer it as an operating system, especially for large servers. The characteristic logo of this system is that of a Penguin, a mascot that is called “Tux” by connoisseurs.

Linux is very efficient and has an excellent design. It is multi-tasking, multi-user, cross-platform and multi-processor; on Intel platforms runs in protected mode; protects memory so one program can’t crash the rest of the system; load only the parts of a program that are used; share memory between programs increasing speed and decreasing memory usage; uses a system of virtual memory by pages; use all free memory for cache; allows you to use both statically and dynamically linked libraries; is distributed with source code; use up to 64 virtual consoles; it has an advanced file system but you can use those of the other systems; and supports networks in both TCP/IP and other protocols.

The flexibility and stability of Linux has made it a key part of Apache-type servers, to operate with languages ​​such as PHP and Perl, in conjunction with databases such as MySQL. Because of its low cost, Linux is part of the programs to build and market low-cost computers in developing nations. This low cost does not imply a worse performance; In fact, the most advanced and fastest computers on the planet use this operating system.

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