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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Integral service in Windows since Windows Vista that updates Windows components, including installed components and drivers, and certain other Microsoft software, notably Office.
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the act of using redirecting one port to another, commonly used to access a computer from behind a firewall with NAT.
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A general term used when a computer or device becomes unresponsive to any kind of user input. May be caused by hardware or software reasons.
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for questions specifically about the 2010 version of the Microsoft Outlook personal information manager; otherwise use [microsoft-outlook].
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For questions regarding usage of the Emacs text editor. See also the Emacs Stack Exchange: https://emacs.stackexchange.com
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a widely-used general-purpose scripting language that is especially suited for Web development. Questions about programming in PHP are off-topic and should be asked on Stack Overflow.
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DO NOT USE THIS TAG! It has been retired. If you have a question about a disk image (a file that represents the contents and structure of a data disk), use [disk-image] or [iso-image] instead. If you …
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cygwin provides a Unix/Linux-like environment under Microsoft Windows OSes.
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A Linux-based operating system for smartphones and tablet computers. Questions about Android devices are off-topic for Super User and should be asked on android.stackexchange.com unless they specifica…
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HDMI (High-Definition Multimedia Interface) is a widely used interface for transmitting audio and video signals between devices and displays. Many PCs now include the ability to output audio/video dir…
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Free email client from Mozilla. Specify your version number when asking.
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Hardware failure refers to the act of a piece of physical hardware failing to meet its designed standards during operation.
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Blue Screen of Death; a Windows fatal system error, e.g. "A problem has been detected and Windows has been shut down" or "Your PC ran into a problem". Mention the specific error code and all informati…
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share a resource over a network, including files and folders as well as printers or other physical devices
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The 2013 version of Microsoft's spreadsheet application.
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The number of pixels in a given display or image, representing the smallest physical unit of display. One individual pixel represents a single colour value, and when combined, create a displayed imag…
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an Open Source database now owned by Oracle. The MySQL documentation is expansive and incredibly useful.
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a condition where soft- or hardware ceases to function properly.
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a free and open source terminal emulator application which can act as a client for the SSH, Telnet, rlogin, and raw TCP computing protocols and as a serial console client. The name "PuTTY" ha…
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a network that connects multiple devices in a limited geographical area, such as a room, an apartment or a building. Currently, most LANs are based on Wi-Fi, link…
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the process of receiving digital data from another computer, either over a local-area-network or a wide-area-network (i.e. the internet).
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Usually a personal account on a computer system that allows access to a system's (advanced) functions.
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A short range wireless protocol used by various devices, such as cell phones, wireless headsets, mice and keyboards.
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the embedded power-source of a component such as a notebook. It is composed of cells of chemical elements that store energy.
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Search refers to the ability of finding any number of items of information with specified properties among a collection of items sharing the same type of properties.
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SATA (Serial Advanced Technology Attachment) is one of the most common bus interfaces for connecting mass storage devices to a computer system.
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a low-power state designed to provide very fast resuming of a computer's operation, with minimal power consumption.
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a free and open source software SSL VPN solution. It allows secure point-to-point or site-to-site connections with routed or bridged configurations and remote access facilities.
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Also known as regular expression or regexp, a description of a set of strings, often used for searching and validating strings.
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called a home network. It usually smaller than an office network, just connecting two or three computers and a modem/router.
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a module that provides the Linux operating system functions of firewall, NAT and logging of data traveling over a computer network.
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The Unified Extensible Firmware Interface BIOS (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output Syste…
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a rule or pattern that specifies how a certain input sequence should be mapped to a certain output sequence according to defined rules and procedures. Consider using [vb…
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file-level computer data storage connected to a computer network providing data access to heterogeneous clients.
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VMware software provides a completely virtualized set of hardware to the guest operating system.
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Questions about the Apple MacBook family of laptops.