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XML (Extensible  Mark p Language) -  A widely used system for defining data formats. XML provides a very rich system to define complex documents and data structures such as invoices, molecular data, news feeds, glossaries, inventory descriptions, real estate properties, etc.


XNA - XNA Game Studio is an integrated development environment (IDE) that includes tools and code development libraries that hobbyists, students and other nonprofessionals can use to create computer games for Microsoft Windows and X-Box 360.