
1) Popular operating system
Found on
https://www.crosswordclues.com/clue/windows-xp

Windows XP is a personal computer operating system produced by Microsoft as part of the Windows NT family of operating systems. The operating system was released to manufacturing on August 24, 2001, and generally released for retail sale on October 25, 2001. Development of XP began in the late 1990s as `Neptune`, an operating system built on the.....
Found on
http://en.wikipedia.org/wiki/Windows_XP

(from the article `Computers and Information Systems`) Microsoft delayed some of the technological improvements that it had promised with Longhorn, the code name for its long-awaited upgrade of the ...
Found on
http://www.britannica.com/eb/a-z/w/42

A Merging of Windows 2000 and Windows ME into a unified platform.
Found on
http://www.vutrax.co.uk/glossary.htm
No exact match found.