Brief Description of Gps and Gis

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Brief descriptions of GPS & GIS

Name: Fatima Aba-alkhail

GPS:
The Global Position System (GPS) was developed by the United States' Department of Defense; determine data on the surface of the earth by satellites using longitude and latitude coordinates and height, which operate 24 hours a day, in all types of weather. There are three types of segments for this system which are: space segment, control segment and user segment.

Examples:
1- GPS help to forest fire place determination. 2- GPS use for earthquake region detection .

GIS:
GIS Geographic Information System (GIS) is defined as: - Computer system combine the spatial information then store them and analyze them which allows to retrieve information for specific targets and help in decision-making. - A mix of science (Geography), information systems and modern software technologies. This system consists of: Software, hardware, specialized people, spatial data and method, each component has specific function. The Software is essential part and is defined as programs that perform various analytical processes. The hardware is defined as it is a computer or any other devices and one of them can be a GPS device. Spatial data is all the data related to the area or place on the earth.

Example:
Use GIS in health services whereas GIS help the Centre for Diseases Control (CDC) to determine the epidemic diseases areas around the world and control those diseases, so the CDC can notify about diseases through the internet.

References:
1- National Coordination Office for Space-Based Positioning, Navigation, and Timing. (2013). GPS overview. Available: http://www.gps.gov/systems/gps/. Last accessed 27 February 2013. 2- National Coordination Office for Space-Based Positioning, Navigation, and Timing. (2013). GPS Application. Available: www.gps.gov/applications/. Last accessed 27 February 2013. 3- Australian Government. (2013). Global Positioning System. Available:...
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