Prologue to the Web - PowerPoint PPT Presentation

introduction to the internet l.
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Prologue to the Web

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  1. WWW Introduction to the Internet Email News Groupware FTP

  2. Name some things you know about the Internet

  3. List a couple of things you would like to know about the Internet

  4. What is theInternet?

  5. Connection of regional networks Spaghetti and Jello International connectivity Distributed not centralized Not just the Internet It’s a Network of Networks

  6. The Internet is Non-proprietary • No one owns or controls the Internet • The future • Fee vs. free • Public vs. private • Internet II

  7. The Networks have Common Protocols (Rules) • Common Language - TCP/IP • 1983 • Allows transmission over different networks • Packet transfer/packet switching • Files broken into parts • Parts addressed to final destination • Parts may take different routes (moving van example)

  8. Email Accessing Internet Resources Discussion Lists News Telnet FTP Internet Resources Groupware Gopher World Wide Web Chats

  9. Computer Mediated Communications

  10. Internet Communication Tools • Computer-Mediated Communication Tools • Electronic Mail • Discussion Groups • UseNet News • Internet Relay Chat • Groupware

  11. CMC: Electronic Mail

  12. Electronic Mail • Online messaging services between computer users • One-to-one • Multiple addresses • Asynchronous (not real time) communication • Text-based • Netiquette very important

  13. Basic Email Features Send Delete Read Reply Forward

  14. Separate mailboxes Signature files Nicknames Username Lookup Attachments Change Queuing Filtering Compacting Additional Email Features

  15. Internet Addresses userid @host.institution.domain

  16. Common Address Forms • America On-Line • • Prodigy • • Internet Service Provider • Example: • University/Internet • Example:

  17. Questions and Comments Email is taking over my life!

  18. CMC: Discussion Lists

  19. Discussion Groups • Group Communication • Uses electronic mail • Single theme or topic • Contains threads of conversation within theme • Subscribe and Unsubscribe • Can temporarily suspend subscription • May be very prolific

  20. Discussion Lists • International • Different addresses: listserv vs. List • One-way or two-way; always asynchronous • People • lurk • post, followup, reply • Participants’ knowledge varies • Netiquette very important

  21. More on UsingDiscussion Lists

  22. Unmoderated--messages come directly from sender to the group Moderated--messages go from sender to moderator to the group Set-Up Methods

  23. Receive methods From Archives Digest Individual Messages

  24. subscribe nomail ack repro conceal digest unsubscribe mail noack norepro noconceal nodigest Common commands--sent to the listserv address

  25. Common commands--sent to the listserv address (cont.) • review • index • info refcard • unsubscribe/signoff

  26. Common commands--sent to the list address • new message--posts a new “thread of conversation • reply to a message--adds to an existing “thread” of conversation • can also: • reply to an individual who posted a new “thread” or a reply to the list

  27. CMC: UseNet News

  28. UseNet News • Similar to discussion groups--people communicate on a topic of common interest • News resides on a computer • Does not rely on electronic mail • Do not need to subscribe/unsubscribe • Can post messages, reply to messages, and/or lurk • Participants’ knowledge varies • Netiquette very important

  29. CMC: Chats

  30. Different Place Same time (snychronous) communication Chats

  31. Focus and Structure are keys to success Chats

  32. Best if limited number are participating at any one time Chats

  33. CMC: Groupware

  34. Groupware • Different time (asychronous) communication • Variety of uses • Multimedia focus • Local or distance

  35. Lotus Notes/Learning Space Microsoft Outlook First Class NiceNet Examples of Groupware

  36. Internet Netiquette • Accepted customs for using the net • DO NOT TYPE IN ALL CAPS • Use emoticons :) :) ;-) • Common abbreviations: BTW, IMHO • Be polite; avoid flaming • Keep your cool! • Repeat part of message when replying

  37. Tip for Using CMC • Remember, once a message leaves your computer, you no longer have control over it!

  38. Internet Access Tools

  39. Internet Access Tools Telnet Gopher Internet Resources FTP WWW

  40. Internet tool Address Path URL’s Uniform Resource Locators have 3 parts

  41. Internet Address--URL’s Several Internet resources use URLs • Gopher--Example: Gopher Jewels • Gopher:// • Telnet--Example: CARL • telnet:// or • telnet:// • WWW--Example: Global Schoolhouse •

  42. More Info on URLs • Represent IP Numbers • CaSe SEnSiTIve • Some servers will not accept the full URL • example, if gives an error; use • Sometimes do not work

  43. Internet Access: WWW

  44. World Wide Web (WWW) • Hypertext links to Internet resources • Fastest growing Internet tool • Text, images, sound, video • Can set bookmarks and save files • Incorporates Email, UseNet News, Gopher, Telnet, FTP

  45. World Wide Web (WWW) • Can order products • Be careful about credit card numbers • Speed and file size can be a problem • Requires helper programs • to hear sounds • to view images • to play videos • to view some text files

  46. Internet Access: Gopher

  47. Gopher • Accessible through WWW • Mostly text based • Relies on a menuing system • Has similar resourcesthat WWW has

  48. How to Find Web & Gopher Resources • Colleagues • Magazines • On-line discussion lists • Newspapers • Search Engines (Veronica, InfoSeek, Lycos, Web Crawler) • Exploration

  49. Resource Evaluations • Do you know the “author”? • Is the source copyrighted? • Is it a credible source? Should it be? • Is it the current version? Should it be? • Is it fact or opinion? • How do you cite it?

  50. Internet Access: Telnet