Introduction to GIS:
GIS is different from conventional information systems as traditional systems don’t worry about location details, in GIS having locational details are mandatory to derive meaningful information. GIS is geographic information system.
Definition of GIS:
GIS is defined as a computer based database management system which is used for capturing, storing, manipulating, analysing, retrieving and displaying geographic data.
Depending on the user requirement it is possible to tune how GIS is used along with the data. Many people think GIS is simply a tool for making maps. It is partially true as the map making and processing capabilities extend way beyond ones normal imagination.
Some of the common areas where applications of GIS are present include civil engineering, urban planning, environment management, disaster management, business management applications etc.
Brief History of GIS:
The use of GIS started and developing very recently i.e., from last 4 decades. However, the roots of GIS traceback to 1850’s where the cholera disease outbreak is studied with the help of plotting death toll details and pipe network details on a paper map. This led to the concept of thematic maps, which progressed the further future of GIS.
With advent of computers the new age of GIS systems kept evolving from 1964 with a difference in approach of developing by Tomilson who is regarded as father of GIS. He developed a layer based approach for developing maps. From 1990 or we can say last 2 to 2.5 decades the computer facility is improved so much and GIS has developed at a rapid pace. These days so many GIS systems are available for the people to work in a specific field of their choice.