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G I S
(Geographical Information System)
GIS is a computer system capable of capturing, storing, analysing, and
displaying geographically referenced information, that is, data identified
according to location.
A GIS is an organized collection of computer hardware, software,
geographic data, and personnel designed to efficiently capture, store,
update, manipulate, analyze, and display all forms of geographically
referenced information.
Components-
 Hardware-
Computer System, Scanner, Printer, Plotter, Flat Board
 Software-
GIS software in use are MapInfo, ARC/Info, AutoCAD Map etc.
The software available can be said to be application specific.
 Data-
A GIS will integrate spatial data with other data resources and can even use a DBMS, used by most organization
to maintain their data, to manage spatial data.
Geographic data and related tabular data can be collected in-house or purchased from a commercial data provider.
 People-
GIS users range from technical specialities who design and maintain.
 Method-
The map creation can either be automated raster to vector creator or it can be manually victories using the
scanned images.
Principle-
 Data Capture-
Data sources are mainly obtain from manual digitization and scanning or aerial photographs,
paper maps, and existing digital data sets.
 Database Management and Update-
Data security, data integrity, and data storage and retrieval, and data maintenance abilities.
 Geographic analysis-
The collected information is analysed and interpreted qualitatively and quantitatively.
 Preparing Result-
One of the most exciting aspects of GIS technology is the variety of different ways in which
the information can be presented.
 Vector
Points
Lines
Polygons
 Raster
Cell
Pixels
Elements
Data Types-
Application of GIS
GIS used in multiple disciplines:
 Agriculture
 Archaeology
 Architecture/
Landscape Arch.
 Business
 Computer Science
 Environmental
science
 Engineering
 Journalism
 Military Science
 Natural Resource
Management
 Geography
 Geology
 Meteorology
 Oceanography
 Law Enforcement
 Public Health
 History
 Sociology
 Urban/ Regional
Planing
Advantages-
 GIS allows us to view, understand, and visualize data in many Ways that
revels relationship, patterns, and trends in the from of maps, globes, reports
and charts.
 A GIS helps you Answer questions and solve problems at your data in a way
that is quickly understood and easily shared.
 GIS gives the accurate data.
 Better Predictions and Analysis.
Disadvantages-
 Excessive damage in case of internal fault. Long outage period
as Repair of damaged part at site may be difficult.
 Expensive Software.
 Integration with Traditional map is difficult.

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G I S.pptx

  • 1. G I S (Geographical Information System)
  • 2. GIS is a computer system capable of capturing, storing, analysing, and displaying geographically referenced information, that is, data identified according to location. A GIS is an organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information.
  • 3. Components-  Hardware- Computer System, Scanner, Printer, Plotter, Flat Board  Software- GIS software in use are MapInfo, ARC/Info, AutoCAD Map etc. The software available can be said to be application specific.  Data- A GIS will integrate spatial data with other data resources and can even use a DBMS, used by most organization to maintain their data, to manage spatial data. Geographic data and related tabular data can be collected in-house or purchased from a commercial data provider.  People- GIS users range from technical specialities who design and maintain.  Method- The map creation can either be automated raster to vector creator or it can be manually victories using the scanned images.
  • 4. Principle-  Data Capture- Data sources are mainly obtain from manual digitization and scanning or aerial photographs, paper maps, and existing digital data sets.  Database Management and Update- Data security, data integrity, and data storage and retrieval, and data maintenance abilities.  Geographic analysis- The collected information is analysed and interpreted qualitatively and quantitatively.  Preparing Result- One of the most exciting aspects of GIS technology is the variety of different ways in which the information can be presented.
  • 6. Application of GIS GIS used in multiple disciplines:  Agriculture  Archaeology  Architecture/ Landscape Arch.  Business  Computer Science  Environmental science  Engineering  Journalism  Military Science  Natural Resource Management  Geography  Geology  Meteorology  Oceanography  Law Enforcement  Public Health  History  Sociology  Urban/ Regional Planing
  • 7. Advantages-  GIS allows us to view, understand, and visualize data in many Ways that revels relationship, patterns, and trends in the from of maps, globes, reports and charts.  A GIS helps you Answer questions and solve problems at your data in a way that is quickly understood and easily shared.  GIS gives the accurate data.  Better Predictions and Analysis. Disadvantages-  Excessive damage in case of internal fault. Long outage period as Repair of damaged part at site may be difficult.  Expensive Software.  Integration with Traditional map is difficult.