本文就互联网改变世界的优缺点进行论述,作者通过介绍互联网的功能、以及互联网存在的威胁,对人们生活的改变等多个方面进行了综合分析,站在第三方角度进行综合客观评价,这种介绍优缺点的assignment在留学生作业中比较常见,希望大家引起重视。
During his evolution journey from Neanderthals to Homo erectus and then to Homo sapiens, man has come long way. Because of his continuous quest for more and more amenities and facilities, the nineties have seen a major turn around with the invention of computers. 10 years ago, the term internet was practically anonymous to most of the people. And today internet has become the most ever powerful tool for man throughout the world. The internet is a collection of various services and resources.
Although, many people still think e-mail and World Wide Web as the principle constituents of internet, there is lot more in store than e-mail, chat rooms, celebrity web sites and search engines. It also became the best business tool of modern scenario. Today internet has brought a globe in a single room. Right from news across the corner of the world, wealth of knowledge to shopping, purchasing the tickets of your favorite movie-everything is at your finger tips. Internet has great potential and lot to offer… however, like every single innovation in science and technology, internet has its own advantages and disadvantages.
Advantages
Communication:
The foremost target of internet has always been the communication. And internet has excelled beyond the expectations .Still; innovations are going on to make it faster, more reliable. By the advent of computer’s Internet, our earth has reduced and has attained the form of a global village.
Now we can communicate in a fraction of second with a person who is sitting in the other part of the world. Today for better communication, we can avail the facilities of e-mail; we can chat for hours with our loved ones. There are plenty messenger services in offering. With help of such services, it has become very easy to establish a kind of global friendship where you can share your thoughts, can explore other cultures of different ethnicity.
Information
Information is probably the biggest advantage internet is offering. The Internet is a virtual treasure trove of information. Any kind of information on any topic under the sun is available on the Internet. The search engines like Google, yahoo is at your service on the Internet. You can almost find any type of data on almost any kind of subject that you are looking for. There is a huge amount of information available on the internet for just about every subject known to man, ranging from government law and services, trade fairs and conferences, market information, new ideas and technical support, the list is end less.
Students and children are among the top users who surf the Internet for research. Today, it is almost required that students should use the Internet for research for the purpose of gathering resources. Teachers have started giving assignments that require research on the Internet. Almost every coming day, researches on medical issues become much easier to locate. Numerous web sites available on the net are offering loads of information for people to research diseases and talk to doctors online at sites such as, America’s Doctor. During 1998 over 20 million people reported going online to retrieve health information.
Entertainment
Entertainment is another popular raison d’être why many people prefer to surf the Internet. In fact, media of internet has become quite successful in trapping multifaceted entertainment factor. Downloading games, visiting chat rooms or just surfing the Web are some of the uses people have discovered. There are numerous games that may be downloaded from the Internet for free. The industry of online gaming has tasted dramatic and phenomenal attention by game lovers. Chat rooms are popular because users can meet new and interesting people. In fact, the Internet has been successfully used by people to find life long partners. When people surf the Web, there are numerous things that can be found. Music, hobbies, news and more can be found and shared on the Internet.
Services
Many services are now provided on the internet such as online banking, job seeking, purchasing tickets for your favorite movies, guidance services on array of topics engulfing the every aspect of life, and hotel reservations. Often these services are not available off-line and can cost you more.
E-Commerce
Ecommerce is the concept used for any type of commercial maneuvering, or business deals that involves the transfer of information across the globe via Internet. It has become a phenomenon associated with any kind of shopping, almost anything. You name it and Ecommerce with its giant tentacles engulfing every single product and service will make you available at your door steps. It has got a real amazing and wide range of products from household needs, technology to entertainment.
Disadvantages
Theft of Personal information
If you use the Internet, you may be facing grave danger as your personal information such as name, address, credit card number etc. can be accessed by other culprits to make your problems worse.
Spamming:
Spamming refers to sending unwanted e-mails in bulk, which provide no purpose and needlessly obstruct the entire system. Such illegal activities can be very frustrating for you, and so instead of just ignoring it, you should make an effort to try and stop these activities so that using the Internet can become that much safer.
Virus threat
Virus is nothing but a program which disrupts the normal functioning of your computer systems. Computers attached to internet are more prone to virus attacks and they can end up into crashing your whole hard disk, causing you considerable headache.
Pornography:
This is perhaps the biggest threat related to your children’s healthy mental life. A very serious issue concerning the Internet. There are thousands of pornographic sites on the Internet that can be easily found and can be a detrimental factor to letting children use the Internet.
Though, internet can also create havoc, destruction and its misuse can be very fatal, the advantages of it outweigh its disadvantages.
There many advantages to using the internet such as:
Email.
Email is now an essential communication tools in business. It is also excellent for keeping in touch with family and friends. The advantages to email is that it is free ( no charge per use) when compared to telephone, fax and postal services.
Information.
There is a huge amount of information available on the internet for just about every subject known to man, ranging from government law and services, trade fairs and conferences, market information, new ideas and technical support.
Services.
Many services are now provided on the internet such as online banking, job seeking and applications, and hotel reservations. Often these services are not available off-line or cost more.
Buy or sell products.
The internet is a very effective way to buy and sell products all over the world.
Communities.
Communities of all types have sprung up on the internet. Its a great way to meet up with people of similar interest and discuss common issues.
The Advantages & Disadvantages of The Internet:
The Internet or the World Wide Web is indeed a wonderful and amazing addition in our lives. The Internet can be known as a kind of global meeting place where people from all parts of the world can come together. It is a service available on the computer, through which everything under the sun is now at the fingertips of anyone who has access to the Internet.
To get ‘online’, meaning to connect to the Internet, you need to have:
A Computer: Computer equipment is a sizeable investment and thus you should select a computer carefully. Before buying a computer, understand your needs and then choose one accordingly. See that it comes with a warranty and that after sales service is available in case you need it.
Internet Service Provider: This is the software that you will require to get online. You can now choose from a dial-up service or 24-hour broadband services. This is the service that will help you to connect to the Internet and start your surfing experiences.
Advantages of the Internet
The Internet provides opportunities galore, and can be used for a variety of things. Some of the things that you can do via the Internet are:
E-mail: E-mail is an online correspondence system. With e-mail you can send and receive instant electronic messages, which works like writing letters. Your messages are delivered instantly to people anywhere in the world, unlike traditional mail that takes a lot of time.
Access Information: The Internet is a virtual treasure trove of information. Any kind of information on any topic under the sun is available on the Internet. The ‘search engines’ on the Internet can help you to find data on any subject that you need.
Shopping: Along with getting information on the Internet, you can also shop online. There are many online stores and sites that can be used to look for products as well as buy them using your credit card. You do not need to leave your house and can do all your shopping from the convenience of your home.
Online Chat: There are many ‘chat rooms’ on the web that can be accessed to meet new people, make new friends, as well as to stay in touch with old friends.
Downloading Software: This is one of the most happening and fun things to do via the Internet. You can download innumerable, games, music, videos, movies, and a host of other entertainment software from the Internet, most of which are free.
Disadvantages of the Internet
There are certain cons and dangers relating to the use of Internet that can be summarized as:
Personal Information: If you use the Internet, your personal information such as your name, address, etc. can be accessed by other people. If you use a credit card to shop online, then your credit card information can also be ‘stolen’ which could be akin to giving someone a blank check.
Pornography: This is a very serious issue concerning the Internet, especially when it comes to young children. There are thousands of pornographic sites on the Internet that can be easily found and can be a detriment to letting children use the Internet.
Spamming: This refers to sending unsolicited e-mails in bulk, which serve no purpose and unnecessarily clog up the entire system.
If you come across any illegal activity on the Internet, such as child pornography or even spammers, then you should report these people and their activities so that they can be controlled and other people deterred from carrying them out. Child pornography can be reported to:
Your Internet service provider
Local police station
Cyber Angels (program to report cyber crime)
Such illegal activities are frustrating for all Internet users, and so instead of just ignoring it, we should make an effort to try and stop these activities so that using the Internet can become that much safer. That said, the advantages of the Internet far outweigh the disadvantages, and millions of people each day benefit from using the Internet for work and for pleasure.
Advantages
The Internet provides many facilities to the people. The main advantages of Internet are discussed below.
1. Sharing Information
You can share information with other people around the world. The scientist or researchers can interact with each other to share knowledge and to get guidance etc. Sharing information through Internet is very easy, cheap and fast method.
2. Collection of Information
A lot of information of different types is stored on the web server on the Internet. It means that billions websites contain different information in the form of text and pictures. You can easily collect information on every topic of the world. For this purpose, special websites, called search engines are available on the Internet to search information of every topic of the world. The most popular search engines are altavista.com, search.com, yahoo.com, ask.com etc. The scientists, writers, engineers and many other people use these search engines to collect latest information for different purposes. Usually, the information on the Internet is free of cost. The information on the Internet is available 24 hours a day.
3. News
You can get latest news of the world on the Internet. Most of the newspapers of the world are also available on the Internet. They have their websites from where you can get the latest news about the events happening in the world. These websites are periodically updated or they are immediately updated with latest news when any event happens around the world.
4. Searching Jobs
You can search different types of jobs all over the world, Most of the organizations/departments around the world, advertise their vacant vacancies on the Internet. The search engines are also used to search the jobs on Internet. You can apply for the required job through Internet.
5. Advertisement
Today, most of the commercial organizations advertise their product through Internet. It is very cheap and efficient way for the advertising of products. The products can be presented with attractive and beautiful way to the people around the world.
6. Communication
You can communicate with other through Internet around the world. You can talk by watching to one another; just you are talking with your friends in your drawing room. For this purpose, different services are provided on the Internet such as;
Chatting
Video conferencing
Internet telephony etc.
7. Entertainment
Internet also provides different type of entertainments to the people. You can play games with other people in any part of the world. Similarly, you can see movies, listen music etc. You can also make new friends on the Internet for enjoyment.
8. Online Education
Internet provides the facility to get online education. Many websites of different universities provide lectures and tutorials on different subjects or topics. You can also download these lectures or tutorials into your own computer. You can listen these lectures repeatedly and get a lot of knowledge. It is very cheap and easy way to get education.
9. Online Results
Today, most of the universities and education boards provide results on the Internet. The students can watch their results from any part of country or world.
10. Online Airlines and Railway Schedules
Many Airline companies and Pakistan Railway provide their schedules of flights and trains respectively on the Internet.
11. Online Medical Advice
Many websites are also available on the Internet to get information about different diseases. You can consult a panel of online doctors to get advice about any medical problem. In addition, a lot of material is also available on the Internet for research in medical field.
Disadvantages
Although Internet has many advantages but it also has some disadvantages. The main disadvantages are:
1. Viruses
Today, Internet is the most popular source of spreading viruses. Most of the viruses transfer from one computer to another through e-mail or when information is downloaded on the Internet. These viruses create different problems in your computer. For example, they can affect the performance of your computer and damage valuable data and software stored in your computer.
2. Security Problems
The valuable websites can be damaged by hackers and your valuable data may be deleted. Similarly, confidential data may be accessed by unauthorized persons.
3. Immorality
Some websites contains immoral materials in the form of text, pictures or movies etc. These websites damage the character of new generation.
4. Filtration of Information
When a keyword is given to a search engine to search information of a specific topic, a large number of related links a displayed. In this case, it becomes difficult to filter out the required information.
5. Accuracy of Information
A lot of information about a particular topic is stored on the websites. Some information may be incorrect or not authentic. So, it becomes difficult to select the correct information. Sometimes you may be confused.
6. Wastage of times
A lot of time is wasted to collect the information on the Internet. Some people waste a lot of time in chatting or to play games. At home and offices, most of the people use Internet without any positive purpose.
7. English language problems
Most of the information on the Internet is available in English language. So, some people cannot avail the facility of Internet.
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There are many advantages of using the Internet, such as :
Global Audience
Content published on the World Wide Web is immediately available to a global audience of users. This makes the World Wide Web a very cost-effective medium to publish information. Reaching more than 190 countries.
Operates 24 hours, 7 days a week
You don’t need to wait until resources are available to conduct business. From a consumer’s perspective as well as a provider’s business can be consummated at any time. The fact that the Internet is operational at all times makes it the most efficient business machine to date.
Relatively Inexpensive
It is relatively inexpensive to publish information on the Internet. At a fraction of the cost to publish information by traditional methods, various organizations and individuals can now distribute information to millions of users. It costs only a few thousand dollars to establish an Internet presence and publish content on the Internet.
Product Advertising
You can use the World Wide Web to advertise various products. Before purchasing a product, customers will be able to look up various product specification sheets and find out additional information. You can use the multimedia capabilities of the World Wide Web to make available not only various product specification sheets but also audio files, images, and even video clips of products in action. The beauty of the Web is that it allows customers to explore products in as much detail as they desire. If the client just wants a general overview, he or she can look at the advertising information. For those wanting more in depth information, you can provide white papers and product descriptions for download. The Web allows a business to provide timely information, you can simply place the information on the Web page and it is available immediately for your customers.
Distribute Product Catalogs
The World Wide Web is a very effective medium for distributing product catalogs. In the old days, putting together a product catalog used to be very costly in terms of time and money needed to publish and distribute it. The World Wide Web changes all this by allowing content developers to put together a sales catalog and make it available to millions of users immediately. Furthermore, unlike printed product catalogs that are usually updated around once a month, product catalogs on the World Wide Web can be updated as needed to respond to various changing market conditions.
Online Surveys
Traditional methods of performing surveys are often relatively slow and expensive compared to online surveys conducted on the Internet. For example, in order to fill out various needs of customers or what they would like to see in a future product, it’s often necessary to compile a list of address and mail a questionnaire to many customers. The success of such an attempt is not always guaranteed and can be very costly in terms of mailing the questionnaires and entering responses to a databases and analyzing it. On the other hand, you can use the World Wide Web to automate the whole process. For example, you can set up a CGI script to conduct online surveys. Results of such a survey can be automatically updated to a database. This database can then be used to keep a pulse on various opinions and needs of customers.
Announcements
With the World Wide Web, you can distribute various announcements to millions of users in a timely manner. Because there is virtually no time lag from the time it takes to publish information to making the information available to users, the Web is an ideal medium to publicize announcements. As more people discover the virtues of the Web and get connected to the Internet, the Web will become the medium of choice for many organizations and individuals to publicize various announcements.
Provide Technical Support
You can also use Web site to provide technical support to users. Because Web pages can be updated immediately with new information, various technical support literature can be immediately modified in light of new findings and developments. This can be accomplished without having to distribute changes to all users affected by any changes using traditional mediums of information distribution, which are often quite costly compared to the World Wide Web.
Create Online Discussion Forums
By using applications such as WebBoard, it’s possible to set up online discussion forums on the Web.
Obtain Customer Feedback
The interactive nature of the World Wide Web is ideal for obtaining customer feedback. You can easily set up a CGI script to obtain customer feedback about a product or service. Because customer feedback submitted by customers can be read immediately, it’s possible to respond to various customer concerns in a timely manner, increasing customer satisfaction and quality of customer service.
Immediate Distribution of Information
When information is added to a Web site, it’s immediately available for browsing by millions of Internet users. The World Wide Web is an ideal medium of information distribution because it takes away the time lag associated with publishing content and actually making it available to users
Easy Integration with Internal Information Systems
Internet information systems deployed on the Internet can be easily integrated with internal information systems managed with office productivity applications such as Microsoft Office.
Powerful Content Publishing Tools
A new breed of Internet aware applications will start emerging in software stores by the time you read this. These applications will enable users to develop content for the World Wide Web by simply saving as an HTML file. In addition to software developers making existing applications Internet aware, various new, powerful, and easy-to use Internet content publishing applications are also being developed. These applications will make the task of publishing content on the Internet even easier. Most of these applications are developed for Windows users.
Multimedia
The capability to incorporate multimedia into Web pages is a major advantage of using World Wide Web to publish information. For example, many Web sites use sounds and video clips to make the content easier and more interesting to browse.
Formatting Capabilities
Content published on the World Wide Web can be richly formatted by using various HTML tags and graphic formats. The capability to do this is a major reason for the success of the World Wide Web. In addition to using HTML tags and various multimedia formats in Web pages, various interactive controls can also be added to a web page. This capability allows Web site content developers to create “active” Web sites. For example, before a user sends some information to a Web server for processing, a VBScript or JavaScript subroutine can be used to verify information typed in by the user. Various formatting capabilities, along with technologies such as Java and VBScript, make the World Wide Web a richly interactive medium that you can use to distribute information to millions of users.
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