GPS

Definition:

GPS stands for Global Position System. GPS is a series of satellites orbiting the earth that can be utilized by GPS receivers to help pinpoint an exact location. The most common consumer uses of GPS include navigation systems in automobiles to map driver's routes and mobile phones to determine the location of a caller placing an emergency call.

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peer-to-peer

Peer-to-peer, sometimes referred to as p2p, is a term used to indicate direct communication between two computers. This is in contrast to the majority of communication between computers on a network such as the Internet which communicate through central servers.