Windows XP and its predecessors.
Windows Vista was technically the replacement for Windows Xp. However, it was so unpopular that many users simply waited for the release of Windows 7 to upgrade.
Windows Vista and Mac OS are types of computer operating systems.
Windows Vista and Mac OS X are examples of computer operating systems.
Windows XP is an example of an OS. Windows Vista is an example of an OS. Windows 7 is an example of an OS. Mac OS X is an example of an OS.
No, it's not. But Vista has similat to OS X interface, at this point it was derived from OS X.
Windows media center is available with Windows Operating systems - Vista, Windows XP Media Center Edition, and all editions of Windows 7 except for Home and Starter. If its a Vista OS may be you can call it a vista media center, so you need your computer to have Windows Vista OS.
You cannot run OS X on a windows machine.
yes
Windows Vista is an OS, so it's software.
Windows vista requires 512mb of system memory, an 800 mghz processor, 20gb of free hard drive space, and a direct X 9 capable graphics card. Windows vista is the 3rd newest version of Microsoft's OS systems, being replaced only by Windows 7 and 8.
appears to be a OS that's a mix between mac's OS X and windows vista.
running an instance of Windows Vista from inside a Windows 7 OS