primary domain controller (PDC)

In a Windows NT Server 4.0 or earlier domain, the computer running Windows NT Server that authenticates domain logons and maintains the directory database for a domain. The PDC tracks changes made to accounts of all computers on a domain. It is the only computer to receive these changes directly. A domain has only one PDC. In this version of Windows, one of the domain controllers in each domain is identified as the PDC for compatibility with Windows NT 4.0 and earlier versions of Windows NT.

Updated On: 04.04.01