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An IT administrator, system administrator, sysadmin, or admin is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems, especially multi-user computers, such as servers.
Windows Server operating systems include it as a set of processes and services. [1] [2] Originally, only centralized domain management used Active Directory. However, it ultimately became an umbrella title for various directory-based identity-related services. [3] A domain controller is a server running the Active Directory Domain Services (AD ...
Administration typically involves collecting performance stats, accounting data for the purpose of billing, capacity planning using Usage data, and maintaining system reliability. It can also involve maintaining the service databases which are used to determine periodic billing.
A service desk is a primary IT function within the discipline of IT service management (ITSM) as defined by ITIL. It is intended to provide a Single Point of Contact (SPOC) to meet the communication needs of both users and IT staff, [7] and also to satisfy both Customer and IT Provider objectives.
In general, a sysop is a person who oversees the operation of a server, typically in a large computer system. Usage of the term became popular in the late 1980s and 1990s, originally in reference to BBS operators. [1] A person with equivalent functions on a network host or server is typically called a sysadmin, short for system administrator. [3]
In some cases, the actual name of the account is not the determining factor; on Unix-like systems, for example, the user with a user identifier (UID) of zero is the superuser [i.e., uid=0], regardless of the name of that account; [1] and in systems which implement a role-based security model, any user with the role of superuser (or its synonyms ...
The operating system provides an interface between an application program and the computer hardware, so that an application program can interact with the hardware only by obeying rules and procedures programmed into the operating system. The operating system is also a set of services which simplify development and execution of application programs.
In Windows NT operating systems, a Windows service is a computer program that operates in the background. [1] It is similar in concept to a Unix daemon . [ 1 ] A Windows service must conform to the interface rules and protocols of the Service Control Manager , the component responsible for managing Windows services.