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.

Windows Runtime (WinRT) is a Microsoft platform architecture that allows applications to run in a sandboxed environment exposing a 'Windows Modern Style' UI/UX. Not to be confused with Windows RT, …
7 questions
WinForms is the informal term given to the graphical application programming interface (API) included as a part of Microsoft's .NET Framework, providing access to the native Microsoft Windows interfac…
310 questions
Query over the content of CIM repository on Windows Machines that uses WQL (Windows Management Instrumentation Query Language).
3 questions
Wolfram Mathematica is a computer algebra system and programming language from Wolfram Research. Mathematica has its own StackExchange site at http://mathematica.stackexchange.com/
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Questions concerning Wordle solvers or clones.
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WordPress is a free and open source blogging tool and a content-management system (CMS) based on PHP and MySQL.
141 questions
Windows Presentation Foundation (WPF) is part of the Microsoft .NET framework used to create rich client user experiences for Windows application.
337 questions
A wrapper is an OOP technique where an object encapsulates (wraps) another object, hiding/protecting the object and controlling all access to it.
147 questions
Wren is a small, fast, class-based concurrent scripting and embeddable language
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wxPython is a Python wrapper for the cross-platform C++ GUI API wxWidgets.
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X11 is an extensible windowing system for bitmap displays. It forms the foundation of most Unix operating system GUIs.
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Code which runs on any of the x86 family of instruction set architectures. Questions should also be tagged for the source language (typically [assembly], though others are possible).
83 questions
Xamarin is a San Francisco based software company created by the engineers that created Mono, MonoTouch and Mono for Android which are cross-platform implementations of the Common Language Infrastruct…
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Extensible Application Markup Language (XAML) is an XML language used for defining user interfaces in WPF and Silverlight.
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For code that uses functions in the X protocol C-language Binding library.
1 question
Extensible Markup Language (XML) is a structured document format that defines human- and machine-readable encoding rules.
444 questions
XNA is a free set of game development tools from Microsoft that facilitate game development for Xbox 360, Windows Phone, Zune and Windows platforms.
28 questions
The primary purpose of XPath is to address parts of an XML document. It also provides basic facilities for manipulation of strings, numbers and booleans. XPath uses a compact, non-XML syntax. XPath op…
37 questions
XQuery is a functional language designed to query and manipulate XML data. It is a superset of XPath, to which it adds features such as the creation of new nodes and more powerful FLWOR expressions. A…
1 question
XML Schema Document (XSD) is a document written in the XML Schema language, typically containing the "xsd" XML namespace prefix and stored with the ".xsd" filename extension. It can be used to express…
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XSLT is a transformation language for XML. Its primary function is to transform XML documents into different output formats, commonly other XML, HTML or plain text.
24 questions
xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework
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The computer program yacc is a parser generator developed by Stephen C. Johnson at AT&T for the Unix operating system.
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YAML: YAML Ain't Markup Language. YAML is a human friendly data serialization standard for all programming languages. In some cases it can also refer to YAML: Yet Another Multicolumn Layout. An open s…
43 questions
Yii is a high-performance, MVC architecture based, open source PHP framework best for developing Web 2.0 applications.
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YouTube is a video-sharing website on which users can upload, share and view videos. Use this tag for questions which may arise when developing for YouTube. This tag is NOT for support questions about…
47 questions
Zend Framework is an open source, object-oriented web application framework implemented in PHP 5 and licensed under the New BSD License.
24 questions
Zephir - Ze(nd Engine) Ph(p) I(nt)r(mediate) - is a high level language that eases the creation and maintainability of C-extensions for PHP.
1 question
ZeroMQ (ZMQ, 0MQ, ØMQ) is a high-performance asynchronous messaging library aimed at use in scalable, distributed and/or concurrent applications.
6 questions
Zsh is a shell designed for interactive use, although it is also a powerful scripting language.
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