| Главная | Регистрация | Вход | RSS | Вторник, 17.09.2024, 12:01 |
English Forever | |
| Приветствую Вас Гость |
|
Internet and Modern LifeInternet and Modern Life 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. 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. Nowadays the most popular Internet service is e-mail. Most of the people use the network only for sending and receiving e-mail messages. 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. 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. Not with-standing, 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. |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Copyright MyCorp © 2024 |
| Бесплатный конструктор сайтов - uCoz |