The Internet has already
entered our ordinary life. Everybody knows that the Internet is a global
computer network, which embraces hundred of millions of users all over the
world and helps us to communicate with each other.
The history of Internet
began in the United States in 1969. It was a military experiment, designed to
help to survive during a nuclear war, when everything around might be polluted
by radiation and it would be dangerous to get out for any living being to get
some information to anywhere. Information sent over the Internet takes the
shortest and safest path available from one computer to another. Because of
this, any two computers on the net will be able to stay in touch with each
other as long as there is a single route between them. This technology was
called packet switching.
Invention of modems,
special devices allowing your computer to send the information through the
telephone line, has opened doors to the Internet for millions of people.
Most of the Internet host
computers are in the United States of America. It is clear that the accurate
number of users can be counted fairly approximately, nobody knows exactly how
many people use the Internet today, because there are hundred of millions of
users and their number is growing.
Nowadays the most popular
Internet service is e-mail. Most of the people use the network only for sending
and receiving e-mail messages. They can do it either they are at home or in the
internet clubs or at work. Other popular services are available on the
Internet too. It is reading news, available on some dedicated news servers,
telnet, FTP servers, etc.
In many countries, the Internet could provide
businessmen with a reliable, alternative to the expensive and unreliable telecommunications
systems its own system of communications. Commercial users can communicate
cheaply 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 local service providers,
not for international calls around the world, when you pay a good deal of
money.
But saving money is only the first step and not the
last one. There is a commercial use of this network and it is drastically
increasing. Now you can work through the internet, gambling and playing through
the net.
However, there are some
problems. The most important problem is security. When you send an e-mail, your
message can travel through many different networks and computers. The data is
constantly being directed towards its destination by special computers called
routers. Because of this, it is possible to get into any of the computers
along the route, intercept and even change the data being sent over the
Internet. But there are many encoding programs available. Notwithstanding, these
programs are not perfect and can easily be cracked.
Another big and serious
problem of the net is control Yes, there is no effective control in the
Internet, because a huge amount of information circulating through the net. It
is like a tremendous library and market together. In the future, the situation might
change, but now we have what we have. It could be expressed in two words — an anarchist's dream.
QUESTIONS:
1.What is the Internet?
2.When and where did the history of Internet begin?
3.Why was the Internet designed?
4.What is modem?
5.Where are most of the Internet host computers?
6.What is the accurate number of internet users?
7.What is the most popular Internet service today?
8.What are other popular services available on the
Internet?
9.What is the most important problem of the Internet?
10.Why is there no effective control in the
Internet today?
11 .Is there a
commercial use of the network today?
VOCABULARY:
network — сеть
toembrace — охватывать, окружать
user — юзер, пользователь
todesign — задумывать, придумывать, разрабатывать
to survive — выжить
nuclear war — ядернаявойна
to pollute — загрязнять
dangerous — опасный
path — путь, маршрут
available —
доступный, имеющийся в распоряжении, наличный