sp3 is the 3rd service pack (a collection of fixes and patches) for some version of Windows. service packs can't run by themselves, they must be installed on top of an already running compatible version of Windows.
sp3 for XP will not install on Vista and vice versa.
http://www.microsoft.com/windows/windows-vista/compare-editions/default.aspx
They are 3 different versions of Windows, here is a link you may find useful:- http://www.microsoft.com/windows/windows-7/compare/versions.aspx
Windows XP Professional is an upgrade to Windows 2000 Professional. Windows Server 2003 is an upgrade to Windows 2000 Server.
Windows home edition Windows 98 windows NT 4.0 workstation windows 2000 professional
There is no such thing as "Windows Linux." Linux is not a version of Windows and has nothing at all to do with Windows. They are two totally completely different operating systems made by completely different people.
Windows XP Home was the replacement for Windows ME, Windows XP Professional was the replacement for Windows 2000 Professional, and Windows Server 2003 was the replacement for Windows 2000 Server.
Windows XP Professional is the successor to Windows 2000 Professional. Windows Server 2003 is the successor to Windows 2000 Server.
windows xp home edition windows 98 windows NT 4.0 workstation windows 2000 professional
There are several differences between the original Mac OS and windows. Two of these differences include the fact that Widows was susceptible to viruses while Mac was not, and the MAC did not have menus in their windows. You could close a window and have the application still run. Windows had menus on each window and when the window was closed, the application stopped.
Yes.
what are similarities and differences between linux and unix?
Dos is single user single task and windows single user multi task