= Substrate Component and Resource List = Components are individual collective computing and networking devices/systems which use power or take up space. Components represent the main building blocks of GENI. Resources are abstractions of the shareable capabilities of a component, e.g. spectrum, bandwidth, links, memory, CPUs, etc. We aim to generate a component/resource list that includes all the fundamental building blocks we are aware of today, whether from commercial experience, or existing network testbeds. At the same time, traditional network resources are expanding to include e.g. computers and storage clusters, and traditional service offerings are diversifying. It follows that researchers will expect a rich menu from which to compose their slices. As such, we encourage broad thinking for this initial component/resource list, and strive for an "overly complete" list. We started developing this list on the [http://lists.geni.net/mailman/listinfo/substrate-wg Substrate Working Group mailing list] in November 2007. You can read the inital discussions in the [http://lists.geni.net/pipermail/substrate-wg/ mailing group archive]. Please read the attached list and edit if you have additions or changes to the list.