Windows XP was released to the public on October 25, 2001, the first two versions released by the company were Home and Professional. The Home version was targeted to home PC users, while the Professional version was designed for business and professionals.
Prior to Windows 7 market dominance, Windows XP was the most widely used desktop operating system in the world for many years.
Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009.
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