A synonym for content server because that is where the content originates.

A server that is the ultimate source of a piece of content

A server that is either an application Web server for internal sites or a proxy server for external sites outside a firewall.

The web server that hosts a particular resource, such as a web page.

server on which a given resource resides or was created.

The server on which a given resource resides or is to be created. [ HTTP

Software that can respond to requests by delivering appropriate content or error messages. The origin server may receive requests via either WSP or HTTP. Application programs executing on the origin server deliver content that is tailored in accordance with the CC/PP that can be found within the provided profile. For the purpose of this specification, "origin server" refers to content generation capabilities, which may physically exist in a stand-alone Web server or may be co-located with a proxy or gateway.

The original server on which content resides (not a caching server that may also have a copy of the origin server content).

A server on which a given resource is located or created. It is often referred to as a web or HTTP server. SI (Open System Interconnection). A standard for a layered architecture that allows data to be transferred among systems through networks. See layer.

A Windows Media server from which content is published. packet A unit of information transmitted from one computer or device to another on a network.