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  2. System administrator - Wikipedia

    en.wikipedia.org/wiki/System_administrator

    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.

  3. Computer operator - Wikipedia

    en.wikipedia.org/wiki/Computer_operator

    A console operator interacts with a front panel or a multi-user system's console entering system commands via a keyboard [a] entering commands for a subsystem, e.g., HASP, via a keyboard [a] replying to requests for information [b] taking actions such as mounting computer tapes that were "pulled" by a tape librarian

  4. List of POSIX commands - Wikipedia

    en.wikipedia.org/wiki/List_of_POSIX_commands

    This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.

  5. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    This is an accepted version of this page This is the latest accepted revision, reviewed on 2 January 2025. Family of Unix-like operating systems This article is about the family of operating systems. For the kernel, see Linux kernel. For other uses, see Linux (disambiguation). Operating system Linux Tux the penguin, the mascot of Linux Developer Community contributors, Linus Torvalds Written ...

  6. Unix - Wikipedia

    en.wikipedia.org/wiki/Unix

    The Unix system is composed of several components that were originally packaged together. By including the development environment, libraries, documents and the portable, modifiable source code for all of these components, in addition to the kernel of an operating system, Unix was a self-contained software system. This was one of the key ...

  7. FSA Corporation - Wikipedia

    en.wikipedia.org/wiki/FSA_Corporation

    FSA Corporation (formerly Freedman, Sharp, and Associates) developed UNIX and Windows system level software for security and distributed system administration in the 1990s. The company provided the underlying technology basis for software offerings by IBM, Symantec, and McAfee.

  8. Database administrator - Wikipedia

    en.wikipedia.org/wiki/Database_administrator

    A database administrator (DBA) manages computer databases. [1] The role may include capacity planning , installation , configuration , database design , migration , performance monitoring, security , troubleshooting , as well as backup and data recovery .

  9. Middleware analyst - Wikipedia

    en.wikipedia.org/wiki/Middleware_analyst

    Middleware analysts [1] look at the system of systems. [2] They solve technical problems which involve large scale inter-disciplinary objectives with multiple, heterogeneous, distributed systems that are embedded in networks at multiple levels. [3] Middleware analysts hold and maintain proficiency in middleware technologies.

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