Global Positioning System (GPS): A system of 24 satellites for identifying earth locations, launched by the U.S. By triangulation of signals from three of the satellites, a receiving unit can pinpoint its current location anywhere on earth to within a few meters. Lets those on the ground, on the water or in the air determines their position with extreme accuracy using GPS receivers.

 

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Global Positioning System (Gps): System of satellites that allows miniature radio receivers on earth to pinpoint one's location within a few feet. Most cruise ships make use of this system to navigate the world's oceans.

Nervous System: One of eleven major body organ systems in animals; coordinates and controls actions of internal organs and body systems, receives and processes sensory information from the external environm . . . View Full Definition

National Wildlife Refuge System (NWRS): Consists of all of the National Wildlife Refuges, the Waterfowl Production Areas, and certain other small tracts managed by states under cooperative agreements with the Fish and Wildlife Ser . . . View Full Definition

Network Basic Input - Output System (NetBIOS): A commonly used networking protocol originally developed for LANs. Operates on the Session and Transport layers of the OSI model, so doesn't make use of physical network characteristics.