yes windows is a multiuser OS
yes. windows nt is a multiuser operating system
A multiuser database may exist on a single machine, such as a mainframe or other powerful computer, or it may be distributed and exist on multiple computers. Multiuser databases are accessible from multiple computers simultaneously.
Yes.
No
Yes, a multiuser operating system is also described as a network operating system.
Linux.
That would depend on how you define multiuser:in the traditional timesharing sense and as Multics, Unix and VMS was designed to be multiuser, where it means many people may login to one computer at the same time via terminals connected to that computer, Windows is clearly NOT multiuser.As a system where many user accounts can exist on one computer and any of these people can login ONE AT A TIME and can access servers through a network that other users can access at the same time, Windows is multiuser.
Novell Netware ? ? ?
mainframe
yes
multiuser