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Civil - Remote Sensing Techniques and GIS - Geographic Information System

Basic Components of Geographic Information System(GIS)

   Posted On :  18.08.2016 08:54 pm
Basic Components of Geographic Information System(GIS)

Geographic information systems have three important components they are (i) Computer hardware (ii) Set of application software modules. (iii) And a proper organizational contest.

GEOGRAPHIC INFORMATION SYSTEM

 

BASIC COMPONENTS OF GIS


Fig 4.4 Components of GIS

 

Geographic information systems have three important components they are

(i)             Computer hardware

(ii)            Set of application software modules.

(iii)        And a proper organizational contest.

 


Fig 4.5 Components of GIS

 

 

1 HARDWARE COMPONENTS OF A GIS

 

The general hardware components of a GIS are shown in the figure

 

CPU Central processing unit is linked to disk drive, which provides space for storing data and programs.

 

Digitizer It is a device used to convert data from maps and documents into digital form (Raster to Vector).

 

Plotter Plotter is used to present the results of the data processing on a paper.

 

Tape drive It is used to store data or programs on magnetic tape for communicating with other systems.

 

VDU (Visual Display Unit)It is used to control the computer and the otherperipherals. It is otherwise known as terminal or workstation.




Tags : Civil - Remote Sensing Techniques and GIS - Geographic Information System
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