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Chapter Summary

Geographical Information System (GIS)

ICSE · Class 12 · Geography

Summary of Geographical Information System (GIS) for ICSE Class 12 Geography. Key concepts, important points, and chapter overview.

70 questions42 flashcards5 concepts

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Overview

Geographical Information System (GIS) is a computer-based system for handling spatially referenced data about the Earth. It helps in capturing, storing, checking, integrating, manipulating, analysing, and displaying geographical information. GIS is part of spatial information technology, which also

Key Concepts

Spatial information technology refers to

Spatial information technology refers to the distribution of phenomena over geographical space. It is an amalgamation of Remote Sensing, GPS, GIS, Dig

GIS is a computer system

GIS is a computer system that can hold and use data describing places on the Earth's surface. It is formally defined as a system for capturing, storin

Spatial data are geographical data

Spatial data are geographical data with a definite location and geometrical shape. They may be represented as point, line, or area features.

Non

Non-spatial data describe spatial data and are also called attribute data. They give additional information about a geographical feature.

Raster data are arranged in rows

Raster data are arranged in rows and columns called a grid. Each square at the intersection of a row and column is a grid cell. Raster is suitable for

Learning Objectives

  • To understand the meaning and definition of GIS
  • To distinguish between spatial data and non-spatial data
  • To learn the two main spatial data formats: raster and vector
  • To identify the main components of a GIS
  • To understand how data are entered, verified, and linked in GIS

Frequently Asked Questions

What are the important topics in Geographical Information System (GIS) for ICSE Class 12 Geography?
Geographical Information System (GIS) covers several key topics that are frequently asked in ICSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Geographical Information System (GIS) — ICSE Class 12 Geography?
Understand the core concepts first, then work through the 70 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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