1. <
networking> A group of computers whose {fully qualified
domain names} (FQDN) share a common suffix, the "
domain name".
The
Domain Name System maps
hostnames to {Internet
address} using a hierarchical
namespace where each level in
the hierarchy contributes one component to the FQDN. For
example, the computer foldoc.doc.ic.ac.uk is in the
doc.ic.ac.uk
domain, which is in the ic.ac.uk
domain, which is
in the ac.uk
domain, which is in the uk
top-level domain.
A
domain name can contain up to 67 characters including the
dots that separate components. These can be letters, numbers
and hyphens.
2. An
administrative domain is something to do with
routing.
3.
Distributed Operating Multi Access Interactive Network.
4. <
mathematics> In the theory of functions, the set of
argument values for which a
function is defined.
See
domain theory.
5. <
programming> A specific phase of the
software life cycle
in which a developer works. Domains define developers' and
users' areas of responsibility and the scope of possible
relationships between products.
6. The subject or market in which a piece of software is
designed to work.
(2007-10-01)