i want to know wht is different between X.Pand windows or both r similar?

Answer 1

Windows is used to denote a series of Operating Systems designed by Microsoft. XP is the current fully working version of that platform (soon to be replaced by Windows Vista). So they are the same thing except Windows can be reference to any version of the software (3.1, 95, 98, 2000, ME, XP, and now Vista are all Windows)

Answer 2

Windows XP is the latest version of the Windows operating system. It is named Windows Expert. It is based on the very successful Windows NT OS (Operating System). The next version of Windows has been code named Longhorn.

According to: http://www.winsupersite.com/faq/longhorn.asp
"Once envisioned as a minor upgrade to Windows XP, Windows "Longhorn" took on all-new importance in early 2002 when Microsoft decided to reach for the brass ring and make this upcoming Windows release an all-encompassing major upgrade with a new security architecture called Palladium, a hardware 3D-enabled user interface, and many more exciting new features. Here's the first--and most comprehensive--Longhorn FAQ ever created, constantly updated to include the latest information about this release."

However the release date for Longhorn keeps getting set back, Microsoft is running into a lot of bugs, as usual.

The History of Microsoft releases are:
1. Windows 1.0 to 3.x; very buggy, 16 bit operating system
2. Windows 95; very buggy, partial 16 bit operating system
3. Windows 98; an upgrade to Win95 to fix some of its bugs
4. Windows NT; Designed chiefly for company servers, 32 bit operating system
5. Windows Millennium; A very buggy version of Win NT
6. Windows 2000 ; A everyman version of Win NT
7. Windows XP; an improved version of Win NT and Win 2000
8. Windows Longhorn

Answer 3

xp refers to experience and windows refers to the microsoft os family
windows xp is the advanced operating system from microsoft