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CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise Linux. It exists to provide a free enterprise class computing platform and strives to maintain 100% binary compatibility with its upstream distribution. CentOS stands for Community ENTerprise Operating System. CentOS developers use Red Hatâs source code to create a final product very similar to Red Hat Enterprise Linux. CentOS is available free of charge. Technical support is primarily provided by the community via official mailing lists, web forums, and chat rooms.
An operating system or OS is a software on the hard drive that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer and software programs would be useless. The picture to the right is an example of Microsoft Windows XP, a popular operating system and what the box may look like if you were to purchase it from a local retail store. Operating System types. As computers have progressed and developed, so have the operating systems. Below is a basic list of the types of operating systems and a few examples of operating systems that fall into each of the types. Many computer operating systems will fall into more than one of the below types. GUI-Short for Graphical User Interface, a GUI operating system contains graphics and icons and is commonly navigated by using a computer mouse. See the GUI definition for a complete definition.