Basic components of Geographical Information System (GIS) you must know. Components – Hardware, Software, Data, Methods and People.

 

gis component
Geographic Information System (GIS) is a system wherein data related to earth, associated phenomena, and events is mapped and analyzed. It is a powerful system that incorporates spatial data, manages it, analyzes it, answers geographic queries and provides great visualization capability. A GIS has five components that make it effective.
  • Hardware:

hardware

Hardware consists of the technical equipment needed to run a GIS efficiently. It includes computer/s (standalone / networked) with good configuration – good processing capability to run the GIS software, enough hard disk space to store large spatial data, and input and output devices such as scanners, printers, etc.

  •  Software:

GIS software helps to store, analyze, and display geographic information in the form of maps and reports. It provides the a Graphical User Interface (GUI) for easy display and access to tools for input, visualizing, processing, editing, analyzing and querying geographic data. Data is accessed and managed through Data Base Management System (DBMS).

  • Data:

database

The most important thing in GIS is the data – how it is managed and accessed. Data is stored as geographic data (spatial data) and related tabular data (non-spatial data). Data comes in various formats, and GIS integrates such spatial data and non-spatial data by using DBMS. It is the key functionality of GIS that helps in organizing, managing and accessing data.

  • Methods:

methods

To make a GIS system work properly requires not only the necessary investments in hardware, software and data, but also requires knowledge to utilize the GIS technology. The methods are the procedure followed to answer the question need to be resolved. Method in GIS includes how the data will be accessed, stored, managed, processed, analyzed, and finally presented as output for particular application.

  • People:

people

People in GIS are technical persons (GIS managers, database administrators, specialists, analysts, and programmers) who design and maintain the GIS work and those who use it. They are the ones who make GIS work.

People in GIS can be categorized into: viewers – the people who just use GIS for reference; general users – who use GIS for business, services, and making decisions such as planners, scientists, engineers, etc; GIS specialists: who are the backbone of GIS and maintain, process and analyze geographic data. They provide technical support to the users.

 


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  • Petrol in India is cheaper than in countries like Hong Kong, Germany and the UK but costlier than in China, Brazil, Japan, the US, Russia, Pakistan and Sri Lanka, a Bank of Baroda Economics Research report showed.

    Rising fuel prices in India have led to considerable debate on which government, state or central, should be lowering their taxes to keep prices under control.

    The rise in fuel prices is mainly due to the global price of crude oil (raw material for making petrol and diesel) going up. Further, a stronger dollar has added to the cost of crude oil.

    Amongst comparable countries (per capita wise), prices in India are higher than those in Vietnam, Kenya, Ukraine, Bangladesh, Nepal, Pakistan, Sri Lanka, and Venezuela. Countries that are major oil producers have much lower prices.

    In the report, the Philippines has a comparable petrol price but has a per capita income higher than India by over 50 per cent.

    Countries which have a lower per capita income like Kenya, Bangladesh, Nepal, Pakistan, and Venezuela have much lower prices of petrol and hence are impacted less than India.

    “Therefore there is still a strong case for the government to consider lowering the taxes on fuel to protect the interest of the people,” the report argued.

    India is the world’s third-biggest oil consuming and importing nation. It imports 85 per cent of its oil needs and so prices retail fuel at import parity rates.

    With the global surge in energy prices, the cost of producing petrol, diesel and other petroleum products also went up for oil companies in India.

    They raised petrol and diesel prices by Rs 10 a litre in just over a fortnight beginning March 22 but hit a pause button soon after as the move faced criticism and the opposition parties asked the government to cut taxes instead.

    India imports most of its oil from a group of countries called the ‘OPEC +’ (i.e, Iran, Iraq, Saudi Arabia, Venezuela, Kuwait, United Arab Emirates, Russia, etc), which produces 40% of the world’s crude oil.

    As they have the power to dictate fuel supply and prices, their decision of limiting the global supply reduces supply in India, thus raising prices

    The government charges about 167% tax (excise) on petrol and 129% on diesel as compared to US (20%), UK (62%), Italy and Germany (65%).

    The abominable excise duty is 2/3rd of the cost, and the base price, dealer commission and freight form the rest.

    Here is an approximate break-up (in Rs):

    a)Base Price

    39

    b)Freight

    0.34

    c) Price Charged to Dealers = (a+b)

    39.34

    d) Excise Duty

    40.17

    e) Dealer Commission

    4.68

    f) VAT

    25.35

    g) Retail Selling Price

    109.54

     

    Looked closely, much of the cost of petrol and diesel is due to higher tax rate by govt, specifically excise duty.

    So the question is why government is not reducing the prices ?

    India, being a developing country, it does require gigantic amount of funding for its infrastructure projects as well as welfare schemes.

    However, we as a society is yet to be tax-compliant. Many people evade the direct tax and that’s the reason why govt’s hands are tied. Govt. needs the money to fund various programs and at the same time it is not generating enough revenue from direct taxes.

    That’s the reason why, govt is bumping up its revenue through higher indirect taxes such as GST or excise duty as in the case of petrol and diesel.

    Direct taxes are progressive as it taxes according to an individuals’ income however indirect tax such as excise duty or GST are regressive in the sense that the poorest of the poor and richest of the rich have to pay the same amount.

    Does not matter, if you are an auto-driver or owner of a Mercedes, end of the day both pay the same price for petrol/diesel-that’s why it is regressive in nature.

    But unlike direct tax where tax evasion is rampant, indirect tax can not be evaded due to their very nature and as long as huge no of Indians keep evading direct taxes, indirect tax such as excise duty will be difficult for the govt to reduce, because it may reduce the revenue and hamper may programs of the govt.