User:Monicaceg

= GEOGRAPHICAL INFORMATION SYSTEM(GIS) =

DEFINITION:GIS can be defined as ‘A system for Capturing, storing, checking, integrating, manipulating, analysing and displaying data which are spatially referenced to the Earth. This is normally considered to involve a spatially referenced computer database and appropriate applications software’.

WAT IS GIS? In emerging technology paradigm, “Geographical Information System (GIS)” has emerged as powerful tool which has potential to organize complex spatial environment with tabular relationships. The emphasis is on developing digital spatial database, using the data sets derived from precise navigation and imaging satellites, aircraft, digitization of maps and transactional databases. The power and potential of GIS is limited only by ones imagination.

COMPONENTS OF GIS:

APPLICATIONS OF GIS: GIS is a convergence of technological fields and traditional disciplines. GIS has been called an ‘enabling technology’ because of the potential it offers for the wide variety of disciplines which must deal with spatial data. Each related field provides some of the techniques which make up GIS. Many of these related fields emphasize data collection – GIS brings them together by emphasizing integration, modelling and analysis, as the integrating field, GIS often claims to be the science of spatial information.The various fields like cartography,remote sensing,mathematics,computer science and photogrammetry widely uses GIS.

FUTURE OF GIS: History has shown that how powerful GIS can be as a new mechanism for managing information. From humble origins, a set of simple ideas, and some rather ineffi cient software, GIS has grown into a sophisticated, a full-fl edged giant industry in only few decades. GIS’s dual role as a mainstream technology for the management of geographic information and as an effective tool for the use of resources is no longer a promise, but a reality.


 * LOCATION BASED SERVICES AND GIS
 * MOBILE REVOLUTION
 * MICRO COMPUTER REVOLUTION