Server farm
Sometimes referred to as just a farm, server farms are collections of computers (at least 10) working together or in conjunction with one another. One of the largest, if not THE largest server farms, is maintained by the popular search engine Google. At last report Google had over 10,000 computers in its server farm.
In the picture to the right, is an example of a server farm with several hundred 1U
rack mountable computers.
Also see: Cluster, Farmer, Networking definitions, Server, Supercomputer, Web farm