In workgroup, account is necessary in each computer after that we can use it drive formatting/partition etc. in domain when we can login any computer what happens when we change in 1 PC what power we can have in domain to manage local resources and in domain what control user can have? List please. (2) active dir stores users PC printers etc- why we need active directory why admin require to locate a object/resource in 5000. How do we use active directory stored info (user name/group/printers/attributes/ in real scene.

Work groups do not have one source of control, think about it you have multiple shares on each work group computer, and maybe printers, then each computer has one user(s). Each users uses each resources and one shared file is changed... who changed the file? Who printed 100 documents of gibberish? What about users how u going to manage them what files would they access? Do they have the permissions to changed a certain file? Active directory is one source managing resources among the network. Yes it is possible to do this on a work group but considering you can only network up to 10 computers and to make the adjustment is too time consuming and costly.

Thanks morchid79