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What is Linux and what are its advantages?

Linux is a computer operating system that is very similar to UNIX. It runs on many different computer systems including the PC and the Mac (it also runs on PDA's and other embedded systems).

The main advantages of Linux are

  • it is Open-Source software so all of the source code is freely available;
  • it is a multi-user operating system with all software necessary to run an advanced Internet server with e-mail, web servers, domain name service (DNS), and many other services;
  • it is free and can be downloaded from many sites (some sites charge if you want hardcopy documentation and a CD-ROM);
  • since the source is freely available, bugs and security problems are patched quickly and made available for download.

Many organizations are using Linux as a server operating system since it runs on relatively inexpensive PC's.


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