Internet and Modern Life The Internet is a huge network of computers spanning this planet and is now started to bring in the surrounding area like space.

Internet and Internet and Modern LifeModern Life

The Internet is a huge network of The Internet is a huge network of computers spanning this planet and is computers spanning this planet and is

now started to bring in the now started to bring in the surrounding area like space. surrounding area like space.

Historical factsHistorical facts The history of Internet began in The history of Internet began in

the United States in 1969. It the United States in 1969. It was a military experiment, was a military experiment, designed to help to survive designed to help to survive during a nuclear war, when during a nuclear war, when everything around might be everything around might be polluted by radiation and it polluted by radiation and it would be dangerous to get out would be dangerous to get out for any living being to get some for any living being to get some information to anywhere. information to anywhere. Information sent over the Information sent over the Internet takes the shortest and Internet takes the shortest and safest path available from one safest path available from one computer to another. Because computer to another. Because of this, any two computers on of this, any two computers on the net will be able to stay in the net will be able to stay in touch with each other as long touch with each other as long as there is a single route as there is a single route between them. This technology between them. This technology was called packet switching.was called packet switching.

Invention of modemsInvention of modems Invention of modems, special devices allowing your computer to Invention of modems, special devices allowing your computer to

send the information through the telephone line, has opened send the information through the telephone line, has opened doors to the Internet for millions of people.doors to the Internet for millions of people.

Most of the Internet host computers are in the United States of Most of the Internet host computers are in the United States of America. It is clear that the accurate number of users can be America. It is clear that the accurate number of users can be counted fairly approximately, nobody knows exactly how many counted fairly approximately, nobody knows exactly how many people use the Internet today, because there are hundred of people use the Internet today, because there are hundred of millions of users and their number is growing.millions of users and their number is growing.

The Internet is very helpfulThe Internet is very helpful

The Internet is very The Internet is very helpful, because it's a huge helpful, because it's a huge database of knowledge, database of knowledge, from the pictures of family from the pictures of family trips to an analysis of trips to an analysis of quantum mechanics. quantum mechanics. Everyone should have the Everyone should have the Internet because of its Internet because of its near instantaneous near instantaneous communication and huge communication and huge wealth of knowledge. But wealth of knowledge. But how to go on the Internet how to go on the Internet and do a search for and do a search for information we need. information we need. There are two ways to do There are two ways to do it.it.

Using a search programUsing a search program

The first is when you know an The first is when you know an internet address of data you need internet address of data you need and the second one is when you try and the second one is when you try to find information you need by to find information you need by using a search program. In the using a search program. In the beginning we have got to enter any beginning we have got to enter any browser you like. It could be an browser you like. It could be an Internet Explorer, Netscape Internet Explorer, Netscape Navigator or Opera, etc. If we have Navigator or Opera, etc. If we have a broadband connection, we a broadband connection, we connect to the Internet at once. If connect to the Internet at once. If not, we have to set up and connect not, we have to set up and connect to our dial-up service. Finally, if we to our dial-up service. Finally, if we want to find some information in want to find some information in the Internet, we are to type an the Internet, we are to type an address of this data in the browser address of this data in the browser we use or simply use the existing we use or simply use the existing search-programs such as the search-programs such as the google search program, rambler google search program, rambler search program, yandex search search program, yandex search program or yahoo search program.program or yahoo search program.

They are very simple and They are very simple and popular networks of sites. In popular networks of sites. In these programs we can just these programs we can just type the word or name of type the word or name of thing, we would like to find and thing, we would like to find and then press enter. A search then press enter. A search program solves this problem. program solves this problem. We get our results in the same We get our results in the same window. After we get our window. After we get our results, we simply choose results, we simply choose whatever site best matches whatever site best matches our query or keep searching. our query or keep searching. Besides data, one can get from Besides data, one can get from the Internet, we can also send the Internet, we can also send and receive e-mail or and receive e-mail or electronic mail. This internet electronic mail. This internet service is cheaper than service is cheaper than ordinary mail and much ordinary mail and much quicker. It is becoming popular quicker. It is becoming popular day by day. We can get some day by day. We can get some news from the Internet, news from the Internet, because there are many because there are many informational servers in the informational servers in the web.web.

E-mailE-mail Nowadays the most Nowadays the most

popular Internet service popular Internet service is e-mail. Most of the is e-mail. Most of the people use the network people use the network only for sending and only for sending and receiving e-mail receiving e-mail messages. They can do messages. They can do it either they are at it either they are at home or in the internet home or in the internet clubs or at work. Other clubs or at work. Other popular services are popular services are available on the Internet available on the Internet too. It is reading news, too. It is reading news, available on some available on some dedicated news servers, dedicated news servers, telnet, FTP servers, etc.telnet, FTP servers, etc.

Commercial usersCommercial users In many countries, the Internet could provide businessmen In many countries, the Internet could provide businessmen

with a reliable, alternative to the expensive and unreliable with a reliable, alternative to the expensive and unreliable telecommunications systems its own system of telecommunications systems its own system of communications. Commercial users can communicate cheaply communications. Commercial users can communicate cheaply over the Internet with the rest of the world. When they send e-over the Internet with the rest of the world. When they send e-mail messages, they only have to pay for phone calls to their mail messages, they only have to pay for phone calls to their local service providers, not for international calls around the local service providers, not for international calls around the world, when you pay a good deal of money.world, when you pay a good deal of money.

Commercial usersCommercial users But saving money is But saving money is

only the first step and only the first step and not the last one. not the last one. There is a commercial There is a commercial use of this network use of this network and it is drastically and it is drastically increasing. Now you increasing. Now you can work through the can work through the internet, gambling internet, gambling and playing through and playing through the net.the net.

Problems in usingProblems in using

However, there are some problems. The most However, there are some problems. The most important problem is security. When you send important problem is security. When you send an e-mail, your message can travel through an e-mail, your message can travel through many different networks and computers. The many different networks and computers. The data is constantly being directed towards its data is constantly being directed towards its destination by special computers called destination by special computers called routers. Because of this, it is possible to get routers. Because of this, it is possible to get into any of the computers along the route, into any of the computers along the route, intercept and even change the data being intercept and even change the data being sent over the Internet. But there are many sent over the Internet. But there are many encoding programs available. Notwith-encoding programs available. Notwith-standing, these programs are not perfect and standing, these programs are not perfect and can easily be cracked.can easily be cracked.

Problems in usingProblems in using Another big and serious Another big and serious

problem of the net is problem of the net is control. Yes, there is no control. Yes, there is no effective control in the effective control in the Internet, because a Internet, because a huge amount of huge amount of information circulating information circulating through the net. It is like through the net. It is like a tremendous library a tremendous library and market together. In and market together. In the future, the situation the future, the situation might change, but now might change, but now we have what we have. we have what we have. It could be expressed in It could be expressed in two words— an two words— an anarchist's dream.anarchist's dream.

Daily and essential necessityDaily and essential necessity

The Internet was created in The Internet was created in 1983. Since that time it has 1983. Since that time it has grown beyond its largely grown beyond its largely academic origin into an academic origin into an increasingly commercial and increasingly commercial and popular medium. The popular medium. The Internet connects many Internet connects many computer networks. The computer networks. The Internet has connected Internet has connected millions of computers millions of computers throughout the world. We throughout the world. We can not imagine our life can not imagine our life without it. Our Information without it. Our Information Age is determined in many Age is determined in many respects by the internet. respects by the internet. Nowadays it has become Nowadays it has become daily and essential necessity daily and essential necessity with contemporary men. with contemporary men.