windows

lol, XP can also mean something else. Its a secret essage from Microsoft. If you look at it on the side...its a picture of a face laughing and sticking its tongue out...meaning "haha u sucker, you just bought latest lemon of windows. XP But all jokes a side, the the post b4 mine knows what his talking bout.

According to Wikipedia: Windows XP is a line of operating systems developed by Microsoft for use on personal computers, including home and business desktops, notebook computers, and media centers. The name "XP" stands for eXPerience.[2] 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.