Today, we are living in a computer age. The awareness of computer is more than at any other time. It has dominated almost all the fields. There is hardly an industry, which does not use computers. It is not anymore thought of as a mere calculating machine. Computers are used in banks, factories, in Government offices, education institutions, for research and development and even supermarkets. The Computer plays a very vital role in the following fields:
1. Trade and Commerce: -
In business, transactions that take place have to be very carefully recorded so that there is less ambiguity and the recorded transactions later on are utilised for various purposes - tax purposes, analysis, forming business strategies and so on. The technological advances have made computers to be one of the most robust machine or device that help the business community and the society at large. It is now possible for the commercial establishments to reach the people globally. This has been possible by the advancement of networking technologies such as WAN. The acceptance of computer by the business community has proved the fact that computers are definitely reliable.
2. Education: -
Education system is one of the key elements in producing good human beings in any society and a computer is definitely considered as one of the better teaching aids. The visual impact leaves a better impression than the conventional way of teaching. The imagination and the creativity of both teacher and taught is enhanced. The advanced countries have already adopted computers as a teaching aid. Some institutions in India are using computers for presenting the subject concerned. Applications like MS POWER POINT help in preparing the slide shows.
Another significant role the computer has played is in transport sector. It has very efficiently utilised by the Indian Railways. Now, a commuter could get latest information about the availability of seats, the arrival and departure of trains. He can book the tickets from any counter in the city and cancel it from any counter. Road transport has taken the cue from Railways and adopted it successfully. Even air traffic control is through the use of Computers. They have helped in minimizing accidents to a great extent. Vehicles can now be tracked by using a technology called GPS (Global Positioning System).
4. Process Industry:
Computers are playing the role of Quality Controllers in manufacturing concerns. A program called CMC is utilized where the machines are programmed to produce units of same quality thereby reducing defective components. Engineers make use of CAD/CAM to design products or design the plant layouts.
5. Home and Hobby:
Personal computers are an exciting hobby. Many people prefer to build their own computers from kits or modify systems that they have purchased.
Home computer is much sought after for relaxation. There are many games that use the full capabilities of a computer to provide many hours of challenging and exciting leisure -time adventure.
The list of other home and hobby applications of personal computer includes checking, account management, budgeting, personal finance, planning, nutrition analysis and dieting, personal income tax preparation, investment analysis, telephone answering and dialing, home security, home environment and climate control, calendar management and maintenance of address and mailing lists.
6. Word Processing:
A word processing system is as much advanced over a typewriter as a microcomputer is over a calculator. Word processing is so popular that it appears on almost everyone's list of uses for the personal computer. This software enables to type any document at rough - draft, speed and then to correct or modify it in any manner before printing.
Using the CRT monitor as the display screen, correction of the mistakes in spelling or grammar, add or delete sentences, move paragraphs around or search for and replace words can be done and the computer quickly modifies the document to accommodate all the changes. It can be printed error - free by a dot matrix or letter quality printer.
7. Professional :
This category includes persons whose occupations are suited to the Desk-top use of personal computer. Authors are professionals who make extensive use of word processing. Other occupations are accountants, financial advisors, stockbrokers, tax consultants, lawyers, architects, engineers, educators and managers at all levels.
The application programs that are popular with these occupations are accounting, income tax preparation, statistical analysis, graphics, stock market forecasting and computer modeling.
The payroll application is a well established computer software. Production of the weekly or monthly salary payments of employees is a regular repetitive clerical task on a large amount of data which is ideal for computerization.
The stock control application is important in both public and private organization. The very large stock control systems become unmanageable to deal with manually and have to be handled by computer. Computers are used to control production and labour, just as they are used to control stock.
8. Engineering and Scientific:
Personal computers do the performance of both routine and complex calculations in fields such as Chemistry, Engineering, Physics and Aerodynamics. They are used to design and test new products such as missiles, aircrafts, home appliances and communications equipment.
9. Meterological Department : -
The MET department has successfully utilized the computer in forecasting the weather. People residing in the coastal areas have enormously been benefited by such forecast especially at the time of cyclones. It has also helped in forecasting of timely onset of monsoon.
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