In a LAN, a subnetwork made up of a group of clients and servers under the control of one security database. Dividing LANs into domains improves performance and security.
In a communications network, all resources under the control of a single computer system.
On the Internet, a registration category. See domain name
and Internet domain name
In database management, all possible values contained in a particular field for every record in the file.
A group of end points (phones or gateways) in a SIP telephony environment. See SIP
In magnetic storage devices, a group of molecules that makes up one bit.
In a hierarchy, a named group that has control over the groups under it, which may be domains themselves.