+System administration is the practice of managing and maintaining [Computer Systems](/wiki/computer_system) and their related infrastructure. It ensures the reliability, performance, and security of [Information Technology](/wiki/information_technology) environments, keeping digital services available and functioning.
+## See also
+- [Network Administration](/wiki/network_administration)
+- [Cybersecurity](/wiki/cybersecurity)
+- [Operating System](/wiki/operating_system)
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