How Global Positioning Satellites Work



Wireless Tidbit

GPS was developed not for civilian use, but instead by the U.S. military for its own use. The first GPS satellite was launched in 1978. The system became partially operational in 1986 and fully operational in 1990. The military still runs the system.




How Personal & Internet Security Work
How Personal & Internet Security Works
ISBN: 0789735539
EAN: 2147483647
Year: 2004
Pages: 161

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