It is brief overview of GIS. which help you to gain knowledge about GIS n GPS too.. :)

3.  A GIS is a particular form of Information System applied
to geographical data.
 An Information System is a set of processes, executed on
raw data( Longitude, Latitude) to produce information
which will be useful when making decisions.
 A system is a group of connected entities and activities
which interact for a common purpose.

4. GIS is a System of computer software, hardware
and data, and personnel to help manipulate, analyze
and present information that is tied to a spatial location
• spatial location – usually a geographic location
• Information – visualization of analysis of data
• System – linking software, hardware, data
• Personnel – a thinking explorer who is key to the
power of GIS

9. sis
Get spatial & attribute data into the GIS. Here
we collect preprocess data from various sources.
Organize data for retrieval and editing. This
subsystem allows we to manage, view, and edit our
datasets.
Create thematic maps, models, and statistics.
Perform tasks on data. With this subsystem, we
conduct spatial analysis to create information

10. Capture
Data
Register
Map Base
Interpret
Data
Convert Data
to Digital
Format
Store Data
in Computer
Process
Data
Display
Results

17. GIS on the Internet
• Olympics
— http://citymap.cityofsydney.nsw.gov.au/
• National Geographic Map Machine
— http://www.nationalgeographic.com/maps.index.html
• Find a Home — http://www.realtor.com
• ATM Locator — http://www.visa.com
• Store Locator — http://www.godiva.com
• GIS Info — http://www.gis.com