An operating system is the underlying software that issues commands to the computer's hardware. It handles such functions as:
Web sites are constantly putting further demands on the operating system of the server. It is therefore important to select an operating system that is flexible, can protect itself from multiple server processes competing for system resources, and is able to support essential server-side processes such as application servers and search engines. All the while, the operating system must continue to perform well. Certainly performance is a critical factor in the selection of an operating system, but you also should consider other factors. In determining which operating system best meets your needs, you should be mindful of the following criteria:
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