by whom was the second system developed?
U.S. Department of Defense.
Global Positioning System
The GPS project was started by the U.S. Department of Defense in 1973
what is ara moreno? It was a dreadnought battleship. to which country did it belong? Argentina. does it have a naval force? Yes, the Argentine Navy ("Armada de la República Argentina"). could you mention a war that it participated in? It didn't participate in any war. does it have a submarines division? Yes, they do. could you please elaborate on the said division? Abbreviated as "COFS", it was created in 1927. how do these machines navigate under water? They use an inertial guidance system, Global Positioning System and a periscope.
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Global Positioning System [SEP] Introduction
The GPS provides critical positioning capabilities to military, civil, and commercial users around the world. The United States government created the system, maintains it, and makes it freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973, with the first prototype spacecraft launched in 1978 and the full constellation of 24 satellites operational in 1993. Originally limited to use by the United States military, civilian use was allowed from the 1980s following an executive order from President Ronald Reagan. Advances in technology and new demands on the existing system have now led to efforts to modernize the GPS and implement the next generation of GPS Block IIIA satellites and Next Generation Operational Control System (OCX).