Microsoft Windows XP Pro (SP3)
Windows
XP is a line of operating systems developed by Microsoft for use on
general-purpose computer systems, including home and business desktops,
notebook computers, and media centers. The name “XP” stands for
eXPerience.[2] It was codenamed “Whistler”, after Whistler, British
Columbia, as many Microsoft employees skied at the Whistler-Blackcomb
ski resort during its development. Windows XP is the successor to both
Windows 2000 Professional and Windows Me, and is the first
consumer-oriented operating system produced by Microsoft to be built on
the Windows NT kernel (version 5.1) and architecture. Windows XP was
first released on October 25, 2001, and over 400 million copies were in
use in January 2006, according to an estimate in that month by an IDC
analyst.[3] It is succeeded by Windows Vista, which was released to
volume license customers on November 8, 2006, and worldwide to the
general public on January 30, 2007.