cheelasantosh

 Profile Answers by cheelasantosh 

• Jun 17th, 2009

 

Organization Unit is like creating a group of users or computers in a domain so that we can apply policies easily to a group at a time.

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan 

• Jul 7th, 2012

 

Organization Unit is a means in which we can keep objects such as user accounts, groups, computer, printer . applications.It allows us to assign specific permission to the users.

Benifits
1.OUs can be nested to support different hierarchy levels

2.Each domain in the Active Directory environment can have its own OU structure. One domain’s OU structure is independent of another domain’s OU structure.

3.It is fairly simple to change an OU structure. OU structures are much more flexible than domain structures.

4.Objects in child OUs can inherit OU configuration settings.

5.Users can delegate administrative control of Active Directory objects through OUs

Qasim Rafique

• Aug 6th, 2015

 

Additional benefit you may get along with all defined by Kishan, is that you can apply Group Policy on the OU.
GPO can only be applied at 3 levels in the AD.
SITE.
DOMAIN.
OU.
Hope it might help.