Sunday, October 26, 2008

Week 1

What can we do on the Internet?
It can help you to do many things such as searching information, chatting with friends, e-mail, entertaining, news, and so on.
How did the Internet originate?
Networking project by Pentagon's Advanced Research Projects Agency(ARPA)
How has the Internet grown?
1969: For host nodes
1984: More than 1000 host nodes
Today: More than 500 million how nodes

Internet is a public, cooperative and independent network, no one controls it. There are two ways to connect to the Internet. The first way is the slow-speed technology, we use the modem in the computer uses a standard telephone line to connect to the Internet, and the connection must be established each time you log on. The second way is the high-speed connection, we use DSL, cable modem, FTTP, fixed wireless, wireless modem, Wi-Fi, and satellite modems, and the connection is always on. The Internet Protocol (IP) address is the number uniquely indentifies each computer of device connected to Internet. The World Wide Web is a worldwide collection of electronic documents. The homepage is the first page that a Web site displays.

No comments: