1. Introduction to Computers Section 8A

2. home How the Internet Works Anyone with access to the Internet can exchange text, data files, and programs with any other user who also is connected to the Internet.

3. home TCP/IP TCP/IP is the set of rules--or protocols-- that every computer connected to the Internet uses to control the way data is formatted and transmitted

4. home Two Kinds of Internet Addresses Internet protocol address (IP address): four-part numeric address Domain name system (DNS) address: an address that uses words instead of numbers

5. home DNS Addresses Have Two Parts Host name Domain

6. home Internet Service Provider (ISP) Provides local access to the Internet backbone

7. home World Wide Web (the Web) Created in 1989, the Web is a type of service available to those using the Internet. Web and Internet are not synonymous.

8. home Web Tools Hypertext transfer protocol (HTTP) Hypertext markup language (HTML) Hypertext links (also called hyperlinks or just links) Web page

9. home Web Site A collection of related Web pages housed on a Web server

10. home Web Browser Software application that finds hypertext documents on the Web and opens them on the user’s computer. First Web browser, Mosaic, debuted in 1993.

11. home Today’s Most Popular Web Browsers Microsoft’s Internet Explorer Netscape Navigator

12. home Uniform Resource Locator (URL) A URL is a file’s location on the Web Access URLs with a Web browser

13. home Helper or Plug-in Applications Help Web browsers display multimedia content.

14. home Types of Content Displayed by Plug-ins Streaming audio Streaming video

15. home Flash by Macromedia Lets Web designers create high-quality animation or video, with audio, that plays directly within the browser window

16. home Popular E-mail Programs Eudora Microsoft Outlook Netscape Messenger

17. home Examples of Online Communication E-mail Listserv Newsgroup

18. home Telnet Internet tool for using one computer to access another

19. home File Transfer Protocol (FTP) Internet tool used to copy files from one computer to another

20. home Internet Relay Chat (IRC) A popular way for Internet users to communicate in real-time with other users

21. home Examples of Internet-Related Services Online Services Peer-to-Peer Services

22. home Web Content Tools Save As HTML Command Web Templates Wizards

23. Section 8A Internet Basics

24. home Review Questions What is the Internet? What is an ISP? What is the Web? Is the Web the same thing as the Internet?