It was codenamed Longhorn.
The operating systems are Windows 7 and the earlier Vista, both 64-bit OS. The computer brand name Compaq is now sold by Hewlett-Packard (HP).
Yes
Longhorn
Windows vista Windows Vista is designed to work with computer hardware that supports Windows Xp and can even outperform-windows XP on the same hardware.Windows vista is also designed to take advantage of modern hardware capabilities.from start up to shutdown, Microsoft windows vista is different from earlier version of windows. not only is the operating system more versatile than its predecessors are, but it also introduces revolutionary architecture that fundamentally changes the way you work with and manage computers running the operating system.
home group is new to windows 7 and cannot be used with earlier versions of windows
That edition of Windows Vista does not exist. Windows Vista exists in two editions for home users: Windows Vista Home Basic and Windows Vista Home Premium.
Default administrator password of windows vista is blank. That means write administrator in Username field and leave password field blank and hit Enter you .will able to log in to your computer. But if you forget you administrator password which you set earlier then use windows vista password recovery software to reset it.
No your windows 7 will not deleted
No. Obviously, if you upgrade to Windows Vista, you will have Windows Vista.
Windows Vista was released on January 30, 2007
No.
Windows Vista was released worldwide January 2007.