Technology Integration
Global Positioning Systems
What are they?
“A system of satellites, computers, and receivers that is able to determine the latitude and longitude of a receiver on Earth by calculating the time difference for signals from different satellites to reach the receiver.”
http://www.answers.com/topic/global-positioning-system
See also:
http://www.webopedia.com/TERM/G/GPS.html
http://en.wikipedia.org/wiki/Global_Positioning_System
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