A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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a rolling-release Linux distribution.
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A cross-platform, open source media player & streaming media server. Use this tag when having issues with playing, streaming, transcoding or otherwise using VLC's features. Consider pairing it with an…
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The bar displayed on a full edge of a GUI desktop that is used to launch, monitor and switch between running applications.
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Process of cleanly stopping the operating system so the system can be turned off
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essential to the operation of any computer and any of its components or peripherals.
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The layer between your hardware and software. It manages disk input/output, memory allocation, graphic acceleration, hosting device drivers and various other resources.
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Transferring files from one storage to another local or remote storage.
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SSL refers to Secure Sockets Layer, a security protocol that has been replaced by Transport Layer Security (TLS). TLS is still commonly referred to as SSL.
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Use for questions referring specifically to versions of OS X 10.7, Lion. Non-version-specific questions related to OS X should be tagged with [osx]. Questions about Mac hardware should be tagged with …
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Dynamic Host Configuration Protocol; allows computers on the same network to automatically obtain unique IP addresses and other network configuration parameters.
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Process of acquiring access to a system's (advanced) functions by proving identity, frequently by supplying a password.
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X.Org Server (commonly abbreviated to Xorg Server, XServer or just Xorg) refers to the X server release packages stewarded by the X.Org Foundation, which is hosted by freedesktop.org, and grants publi…
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for a series of graphics cards made by Nvidia. Use this tag if your question is about installing, configuring, troubleshooting or otherwise using Nvidia graphics cards and related drivers …
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a desktop environment/graphical user interface that runs on top of a computer operating system, most notably Linux and the Java Desktop System which is part of Solaris.
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Processor specifically designed to perform fast memory manipulation, with instructions specifically tailored to handle computer graphics processing and rendering
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a binary program running continuously on a computer (until terminated) which is managed by the operating system.
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a software application that allows users to make voice calls, instant message, and video conference over the Internet.
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A software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer.
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A utility available on all operating systems that helps test network connectivity.
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Webmail service provided by Google. See WebApps.StackExchange.com first as that's where they most likely will be on topic unless using with a desktop client
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a form of problem solving that uses logical, systematic steps to solve the problem.
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Recommendations for software or applications are off-topic here. Ask such questions on Software Recommendations.
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DO NOT USE THIS TAG. It has been retired. Instead, use the appropriate tag for whatever you are upgrading. See: http://meta.superuser.com/q/8567/76571
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All connections, wired, wireless, internet, intranet, and cable fall under this category. Use this tag if your issue involves establishing, maintaining, adding, or removing connections.
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an re-implementation of the smb network sharing protocols, which are used in Windows for file and printer sharing.
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a script written for the shell, or command line interpreter, of an operating system.
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Graphs, charts and other graphical methods for showing data and their relationships.
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a media library management and playback application developed and maintained by Apple for OS X and Windows. It is also used to synchronise Apple media devices and manage their contents.
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an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Time Warner in 1995.
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managed and organized. Could refer to file management by the OS or by a third party application.
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Making a process run completely or in part without the need of any user input once the process is started.
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Commercial software presentation program included in all editions of the Microsoft Office suite.
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Ultra low-cost computer the size of a credit card. Also check the Raspberry Pi SE: http://raspberrypi.stackexchange.com/
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Graphics editing program developed and published by Adobe Systems. So ubiquitous its use in photo manipulation that it birthed term "Photoshopping".
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Questions about changing the colors of things (usually themes).
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Most current file systems have methods of administering permissions or access rights to specific users and groups of users. These systems control the ability of the users to view or make changes to th…