Your question is rather cryptic. Do you mean Microsoft Windows, leading to dual-booting Windows and Linux? Please expand your question.
Vista Home Premium : Not Linux! Get linux! Vista Business : Not Linux! Get linux!
Preemptive (both Windows and Linux).
Linux servers can be converted to Windows fairly easily. They support a variety of sql databases. The cost is lower than for other operating systems.The Linux operating system is very stable.
Two operating systems are; Windows, and Linux.
Linux is considered to be more secure than Windows.
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 is better for desktop computers. Linux is better for servers.
The only real advantage of SUSE Linux over other distros IMO is that windows users could install it and not be too lost. Although some other Linux OS are nearly as easy to use as SUSE now.
Windows, Linux, Ubuntu, Linux Mint, the list is huge!
Linux
Yes, install Windows first, then whichever distribution of Linux you want second.
There are no "joined" Linux and Windows operating systems, so there is no name for them.