An operating system (OS) is the computer program that manages all other programs on the machine. You interact with the computer by using the OS through an interface such as a command language or a graphical user interface (GUI). One such GUI is Windows XP. Others include Mac OS X and Linux. All other programs on your computer (such as Word, Excel, and PowerPoint) are called applications.
Windows XP is a Microsoft operating system released in 2001 and is, by far, the most commonly used OS buy today’s computer users. Windows XP comes in two versions: Windows XP Home and Windows XP Professional.
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