I see a lot of discussions going on in other forums wherein we discuss about domains. I searched google and all I could understand by looking at various results is that domain is some sort of methods using which some PCs can be grouped. Is is something like creating a subnet or more like a service for a network? and what are the differences between a LAN and a Domain?
EDIT: I know about the Domain names but what is the 'domain' in a private network ... like a LAN?