Windows 2003 Server is the Best
Tree directory structure
Windows 95 OSR2
An operating system enables you to view files saved onto your storage devices and arrange them into a folder/directory/file structure.
Winodws XP
Windows 2003 Server is the Best
Active Directory
Active Directory, a piece of software created by Microsoft in 1999 for the Windows 2000 operating system, information can be found on various Microsoft related websites.
Tree directory structure
the Domain is called as the security boundary with in the active directory. A Windows domain is a logical group of computers running versions of the Microsoft Windows operating system that share a central directory database. domain governs the way user access resources of the network
file manager
No, you do not. You only install Active Directory if the system is going to be a domain controller. If it is a member server or a standalone server Active Directory should not be installed.
What base directory would you put a script in if you wanted it to automatically start when the operating system starts?
operating system uses the file system
I assume you mean "When was the first operating system introduced?" Seems to be in the 1950s. See the link below for a very detailed page.
When a user logs in to a Unix system, the current working directory normally starts at the directory/file
An operating system enables you to view files saved onto your storage devices and arrange them into a folder/directory/file structure.