1. Internet Basics The World Wide Web

2. Page 1 Web Basics The World Wide Web The Web is a collection of files organized as a giant hypertext Many of these files produce documents called Web pages Web site - location on a computer somewhere on the Internet that stores a collection of Web pages –http://www.yahoo.com

3. Page 2 Web Basics What is the Web?

4. Page 3 Web Basics What is the Web (World Wide Web)? Web server - computer with special software for transmitting Web pages over the Internet –Domain names prefixed with www Home page - identifies the site and contains links to other pages at the site Web sites are composed of a series of Web pages –Each page stored as a file –Referred to by a unique URL

5. Page 4 Web Basics What is the Web? URL (Uniform Resource Locator) - an Internet address of a document on a computer –Begins with http:// HTTP stands for Hypertext Transfer Protocol - the protocol that allows Web browsers to communicate with Web servers

6. Page 5 Web Basics Browsers

7. Page 6 Web Basics What is a browser? Web browsers provide Internet users with all-purpose client software for accessing many types of servers –Internet Explorer –Netscape –Mozilla

8. Page 7 Web Basics Exactly what does a browser do? A browser fetches and displays Web pages The server sends your computer data that’s stored The data consists of information that you want to see and HTML tags, codes that tell your browser how to display it

9. Page 8 Web Basics Exactly what does a browser do?

10. Page 9 Web Basics URL box Navigation buttons Home button Print Save Copy History List Favorites or Bookmarks Stop button Find Which features are common to most browsers? Web Basics

11. Page 10 Web Basics Which features are common to most browsers? To highlight a passage of text, hold down the mouse button while dragging the I-beam pointer from the beginning of the passage to the end of it. Click to start

12. Page 11 Web Basics What is a search engine? Search engine – popularly refers to a Web site that provides a variety of tools to help you find information –A software program that helps you locate web pages on certain topics –Enter keywords or descriptions –AltaVista, Google, Yahoo, etc.

13. Page 12 Web Basics Search Engines The search engine displays the total number of relevant pages. Underlined links make it easy to quickly connect to any of the Web pages in the list. The search was for railroad cars. Search results are typically arranged in order of relevancy, so that the most promising Web pages should be at the top of the list. A brief description of the page helps you determine whether you want to view it.

14. Page 13 Web Basics Exactly what is a query? Describes information you want to find You can enter more than one search term. Separate each term with a space or search operator –A search operator is a word or symbol that describes a relationship between keywords and thereby helps you create a more focused query AND, OR, and NOT Quotation marks NEAR Wildcards Field Searches

15. Page 14 Web Basics A topic directory is a list of topics and subtopics How do I use a topic directory? Click to start

16. Page 15 Web Basics How do I use a form to find information?

17. Page 16 Web Basics Can’t I just ask a single question and get an answer?

18. Page 17 E-mail Basics E-mail Overview Message body Attachment Subject line Recipients’ names or e-mail addresses

19. Page 18 E-mail Basics Who can use e-mail? Any person with an e-mail account An e-mail account provides the rights to a storage area or “mailbox” Each mailbox has a unique address –Greene@rutgers.edu

20. Page 19 E-mail Basics Exactly what is an e-mail message? An e-mail message is a document that is composed on a computer and remains in digital form so that it can be transmitted to another computer Every message includes a message header and the body of the message, usually displayed in a form

21. Page20 E-mail Basics What can I do with basic e-mail? Basic e-mail activities –Writing –Reading –Replying To –Forwarding

22. Page 21 E-mail Basics What can I do with basic e-mail? Reply Original message

23. Page 22 E-mail Basics How does forwarding an e-mail work? After you receive a message, you can use the Forward feature to pass it on to other people When you initiate the forward process, the original message is copied and then you can enter the address of the person to receive the message, and even add a note about why you are passing it along

24. Page 23 E-mail Basics What’s an e-mail attachment? An e-mail attachment is a file that travels with a message to the recipient A conversion process called MIME provides a way of disguising the file as plain ASCII text that can travel over the Internet

25. Page 24 E-mail Basics How does HTML relate to e-mail? Most e-mail software allows you to create messages in HTML This allows your messages to contain fancy formatting and multimedia aspects

26. Page 25 E-mail Basics –Address book –Group e-mails –Carbon copy –Assign a priority to your e-mail –Find a message –Enlarge text size –Sort messages –Refuse messages –Automate replies –Automatic fetching –Spell checking What other advanced e-mail features are available? E-mail Basics

27. Page 26 E-mail Basics Is e-mail different than other types of communications? E-mail is similar to old-fashioned letters E-mail is faster than post office, but lacks immediacy of a telephone conversation

28. Page 27 E-mail Basics Is e-mail different than other types of communication? Netiquette is online jargon for “Internet etiquette. It is a series of customs or guidelines for maintaining civilized and effective communications on-line Notify recipients of virusesStay alert for viruses Explain all attachmentsDon’t send huge attachments Don’t send replies to “all recipients”Use the Bcc function for group mailings Use smileys cautiously : - )Be cautious with sarcasm and humor Be conciseBe polite Be careful what you sendCheck spelling Use uppercase and lowercase lettersPut a meaningful title on the subject line

29. Page 28 E-mail Basics E-mail Technology: What is an e-mail system? An e-mail system is the equipment and software that carries and manipulates e- mail messages E-mail servers sort, store, and route email Store-and-forward technology – a communications method in which data that cannot be sent directly to its destination will be temporarily stored until transmission is possible

30. Page 29 E-mail Basics E-mail Technology: What is an e-mail system? (Continued) The possible transmission methods are: –POP –SMTP –Web-based e-mail

31. Page 30 E-mail Basics How do I use Web-based e-mail? E-mail Basics

32. Page 31 E-mail Basics How do POP and IMAP work? POP server – a computer that stores your incoming messages until they can be transferred to your hard disk Using POP requires e-mail client software Outgoing mail is routed by an SMTP server

33. Page 32 E-mail Basics How do POP and SMTP work?

34. Page 33 E-mail Basics Does e-mail client software work only for offline e-mail tasks? You can use it offline and on-line It can automatically send messages out over the Internet when online

35. Page 34 E-mail Basics Is POP mail better than Web-based e- mail? Requires e-mail client software Transfers e-mail to your computer Consider the following when deciding: –Control –Security –Travel