Domain

A domain is often referred to as a domain name though it is actually a bit more complex. In this case it consists of several network addresses categorized in levels of hierarchy. The top level of a domain identifies the commonality of it’s structure. It’s second level identifies a designated position within the top level and is equivalent to a unique internet location, more commonly known as an IP address. Lower levels may also be used to identify sub domains. As it relates to general computing and telecommunications, a domain is defined as a sphere of knowledge identified by a name. In most cases, the knowledge it contains includes data concerning program files or a number of network points and locations. In Windows 2000 and NT operating systems, a domain is a group of network tools and resources available to users. A user can gain access to these resources by logging into the domain.