THE INTERNET

Exercise 1.Read the text and answer the questions given below.

The Internet, a global computer network which embraces millions of users all over the world, began in the US in 1969 as a military experiment. It was designed to survive a nuclear war. Information sent over the Internet takes the shortest path available from one computer to another. Because of this, any two computers on the Internet will be able to stay in touch with each other as long as there is a single route between them. This technology is called packet switching. Due to this technology, if some computers on the network are knocked out, the information will just route around them.

Most of the Internet host computers (about 50%) are in the United States, while the rest are located in more than 100 other countries. Although the number of host computers can be counted fairly accurately, nobody knows exactly how many people use the Internet.

The most popular Internet service is e-mail. Most of the people, who have access to the Internet, use the network only for sending and receiving e-mail messages.

In many developing countries the Internet may provide businessmen with a reliable alternative to the expensive and unreliable telecommunication systems of these countries. Commercial users can communicate cheaply over the Internet with the rest of the world. But people can not only save money, they can make money from the Internet. For example, some western architecture companies transmit their basic designs and concepts over the Internet into China, where they are reworked and refined by skilled and inexpensive Chinese specialists.

However, some problems remain. The most important is security. When you send an e-mail message to somebody, this message can travel through many different networks and computers. The data is constantly being directed towards its destination by special routers-computer. So, it is possible to get into any of the computers along the route and intercept or change the data being sent over the Internet. But, if necessary, you can use some encoding programme.

Exercise 2.Answer the following questions

1. What is the Internet?

2. What was the Internet originally designed for?

3. What country are most of the Internet host computers in?

4. What is the most popular Internet service?

5. What is the most important problem about the Internet? How can you avoid it?

6. Do you often use the Internet? What for?

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