Introduction to GIS and GPS with special reference to their advantages and disadvantages

2. What is GIS?
 It refers to Geographic Information System.
 GIS is a computer system capable of assembling
storing, manipulating, and displaying geographically
referenced information.

3. HISTORY
 Coined by Rogar Tomilson in 1963.
 Tomilson acknowledged as the "father of GIS”.
COMPONENTS
 There are 3 components in GIS.
1. Data
2. User
3. Computer system

4. TYPES
 There are 3 types of GIS.
1. Web based GIS
2. Geo browser GIS
3. Desktop GIS
PRINCIPLE
1. Data capture
2. Database management and update
3.Geography analyis
4. Preparing result

5. ADVANTAGES
1. GIS allows to view , understands and visulized data in
many ways.
2. GIS gives the accurate data.
3. Better prediction and analysis.
DISADVANTAGES
1. Expensive software
2. Excessive damage in case of internal fault

6. WHAT IS GPS ?
 It refers to the Global Positioning System.
 It is the system to show you and your exact location
on the earth anytime, in any whether.

7. HISTORY
 The GPS project was started in 1973.
 The first prototype spacecraft was launched in 1978.
 The full constellation of 24 satellites operational in 1993.
COMPONENTS
 Space segment.
 Control segment.
 User segment.

8. HOW IT WORKS
Device is installed inside the vehicle
Device is located by satellite via GPS
GPS value is sent to server via GPRS
Server stores the data for 365 days
log-on to the website to monitor

9. APPLICATIONS
 Location
 Navigation
 Tracking
 Mapping
 Timing

10. ADVANTAGES
1. Fast speed.
2. Leads you in all direction.
3. Accuracy level is very possible.
DISADVANTAGES
1. Driving distraction.
2. Signal or battery failure
3. Privacy issues and crime.

11. FUTURE OF GPS
 The most certain aspect of the future of GPS is its
increased usage and its expansion into new areas of
application.
• Automobiles
• Ships
• Farm vehicles
• Aircrafts
• Military systems