Domain

Typically a company has a domain that is the same as the company name.

Thus everybody who works at ACME logs onto a domain called 'ACME_USA' or something similar. If ACME is a medium-sized company, they probably have two domain controllers, called something like DC01 and DC02, and those servers let everybody do their Windows login and so forth.

[i]A domain is a group of computer users that do not suffer for the limitations of a Peer to Peer Network.[/i]

Otherwise the above applies, this may be of some assistance

http://en.wikipedia .org/wiki/Windows_domain

Just remember to remove the space though. ;)

Col