3. Newsgroup World Wide Web (WWW) Conservation Over the Internet e.g.ICQ File Transfer Protocol (FTP) Includes 6 main services: Electronic Mail Remote logon

4. World Wide Web (WWW) n n A system that enable users to find and retrieve information by navigating through linked hypertext documents

5. Newsgroup n n It is a discussion group that allows people with common interests to communicate with each other. n n Computers have to connect to newsgroup servers in order to download news.

6. Electronic Mail n n It can exchange E-mail on a network n n It is a fast and convenient way to exchange ideas and request information n n You can attach files in E-mail, forward to other readers …

7. File Transfer Protocol (FTP) n n To copy files (e.g. HTML files) from one computer to another on the internet n n Download (From Server to Home PC) files n n Upload (From Home PC to Server)

8. Conversation over the Internet (Chat) - e.g.ICQ, internet phone n n You can instantly communicate with people around the world by typing back and forth n n When chatting, the text you typed immediately appears on the screen of each person involved in the conversations

9. Remote logon (Telnet) n n You can logon a host computer remotely through the Internet, and the computer will act as a terminal for the computer host (e.g. UNIX systems). n n You can do some operations or commands to remote control the host system. E.g. Run a program. Host Computer Terminal