5. GIS

Geographic Information systems are computer aided systems that facilitate the following tasks .

1. capture,
2. modeling,
3. storage,
4. retrieval,
5. sharing,
6. manipulation
7. presentation of Geographic information

GIS represents information & data about geographic objects like mountains, rivers, lakes, and not only natures creations , but human creations like buildings , houses, roads ...etc.and GIS enables multiple information to be shown in the same format, as an example in a Geo map you can find population layers, buildings, roads, vegetation on the same map but as different layers.