A hinge is a device consisting of two interlocking metal pieces held by a pin around which they pivot. One half of the hinge is welded to the door pillar, and the other half welded to the door, so that it does not come loose with repeated opening and closing of the door.
A client-server network is designed for end-users, called clients, to access resources such as files, songs, video collections, or some other service from a central computer called a server. A server's sole purpose is to do what its name implies - serve its clients!
In general terms, a customer is a person or organization that a marketer believes will benefit from the goods and services offered by the marketerâs organization. As this definition suggests, a customer is not necessarily someone who is currently purchasing from the marketer.