Outcomes
        In this lesson you will learn 
        - describe the functional components of a GIS system 
 
          - explore applications for GIS in navigation
 
        
Prerequisites
        To be successful in this lesson, it would be helpful to know the following: 
        
        - satellites 
 
          - GPS 
 
          - latitude, longitude and altitude 
 
          - that a database consists of collections of information organized by types of information, for example a collection of information about people organized by name, address, phone number and so on.