The document summarizes the Global Positioning System (GPS). It discusses the history of GPS, starting with the Navy's TRANSIT navigation system in the 1960s, and the launch of the first GPS satellite in 1978. Today there are 24 satellites placed into orbit by the U.S. Department of Defense. The document also briefly explains how GPS works using signals, software, and timing, and notes that GPS is used by both the military and civilians for navigation in areas like cars, planes, and smartphones.

1. Global Positioning System (GPS)
By: Thamer Alrashed
http://www.nist.gov/pml/div688/grp40/images/GPS_Constellation_2.gif

2. GPS History
 The Navy's TRANSIT navigation system in the 1960s.
 In 1973, the development of the GPS.
 In 1978 the military had launch the first GPS satellite.
 Until 1980, GPS was only used by the U.S. military.
 Today there are 24 satellites placed into orbit by the U.S.
Department of Defense.
http://strikefighterconsultinginc.com/wp-content/uploads/2012/01/H-
MR1_0507_202.jpg

3. How the GPS works?
 Signal.
 GPS software.
 Timing.
http://airandspace.si.edu/gps/work.html

4. Who uses GPS? Where you can use it?
http://blogs.voices.com/voxdaily/woman-looking-at-gps-in-car.jpg
http://www.youtube.com/watch?v=rxt
djDRbjFU

5. Thank You