Ethernet
A common method of networking computers in a LAN. There is more than one type of Ethernet (See LAN).
Euro ISDN
A name for ISDN as defined by the relevant European ETSI standards
Extranet
An Intranet that is accessible to computers that are not physically part of a company’s own private network, but that is not accessible to the general public – for example, to allow vendors and business partners to access a company web site.