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Windows XP, one of the most popular and widely used versions of the Microsoft Windows operating system, was released for retail sale.
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Windows XP
Microsoft PC operating system released in 2001
Windows XP is a major release of Microsoft's Windows NT operating system. It was released to manufacturing on August 24, 2001, and later to retail on October 25, 2001. It is a direct successor to Windows 2000 for high-end and business users and Windows Me for home users.Source: Wikipedia (CC BY-SA)
Microsoft Windows
Computer operating systems
Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sectors of the computing industry – Windows (unqualified) for a consumer or corporate workstation,…Source: Wikipedia (CC BY-SA)