By convention, the name of systems follow the style
machine_name.division.organization.country (outside USA)where
machine_name.division.organization.org_type (inside USA)
machine_name is the personal name of the system.
division is the division, institute, group which owns that workstation.
organization is the name of the company which owns the computer.
country is a two letter country code, such as ca for Canada, fr for France, uk for United Kingdom, etc.
org_type is the type or organisation, as shown in table 13.1.
Table 13.1: Top Domain Names in USA.