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Internet & World Wide Web

Internet & World Wide Web. Computer Network. Two or more computers that are connected and share data and programs. LAN: Local Area Network WAN: Wide Area Network. Internet Basics (Cyberspace).

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Internet & World Wide Web

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  1. Internet & World Wide Web

  2. Computer Network Two or more computers that are connected and share data and programs LAN: Local Area Network WAN: Wide Area Network

  3. Internet Basics (Cyberspace) Internet is a collection of - privately & publicly owned - local, regional, national and international computer networks that are linked together to exchange data and distribute processing tasks.

  4. Internet Terminology • Internet Backbone: defines main Internet routes • Constructed and maintained by major telecommunications companies - NSPs (network service providers) • TCP/IP: • Transmission Control Protocol/ Internet Protocol

  5. Internet Resources • Internet Telephony • Usenet • E-commerce • Instant Messaging • Web site • E-mail • Internet Radio • Download & Upload • Chat / Video Conferences

  6. Internet Terminology • Server/server software: • a computer that makes resources available to the network • Client: • computer that requests services from a server • IP Address: • unique number for each Internet computer

  7. Internet Service Provider (ISP) • Provides internet access to businesses, organizations and individuals • Provides telecommunications equipment • User ID and password required • Connects you to backbone • Email account monthly fee

  8. E-mail Basics • Account = Mailbox • Message • Attachment • Netiquette userid@computer

  9. E-mail Terms • To • CC • BCC • Reply • Reply All • Gloria Allred

  10. Netiquette

  11. World Wide Web Basics • Files interconnected via hypertext • The Web uses the Internet to transport the files • Web pages make up a web site • Home Page • Links or hyperlinks • Web servers

  12. W3C World Wide Web Consortium • Issue standards related to all aspects of the Web

  13. Folder name Document name and filename extension Web protocol standard Web server name http://www.cnn.com/showbiz/movies.htm World Wide Web Basics • URL (Uniform Resource Locator) • No spaces and Case sensitive • HTTP (Hypertext Transfer Protocol) – communications standard • HTML (Hypertext Markup Language) • .htm or .html file extension

  14. Web browsers • A program on your computer that displays a Web document by interpreting the HTML or XHTML format • Processes users requests

  15. Using Browsers • Can type URLs • HTML tags tell browser how to display web page data • Back, forward and stop buttons • Setting a home page • Print options • History list • Favorites and bookmarks • Edit and Find

  16. Using the Web • Uploading: transfer files from your computer to another computer • Downloading: transfer files from another computer to your computer

  17. Cookies • Cookies are files created by websites you've visited to store browsing information, such as your site preferences or profile information. It's important to be aware of your cookie settings because cookies can allow sites to track your navigation during your visit to those sites

  18. Incognito • Stealth Mode • Any webpages that you open and files downloaded while you are in incognito mode won’t be recorded in your browsing and download histories. All new cookies will be deleted after you close the incognito windows.  • InPrivate Browsing, Private Browsing

  19. Web Filters • usually associated with Firewalls; it allows Web browsers to display information from trusted sites and blocks information from un-trusted sites

  20. Personalization • Personas / Skins / Themes • Ways to personalize your browser’s appearance • Firefox – Add-Ons • Speed Dials

  21. Gadgets & Widgets • Apps for displaying content • Adds personalization • Gadgets • Works specifically for just that website or your desktop • Widget • Works on any website that lets you add an HTML block

  22. Search Engines

  23. Specialized Engines

  24. Search Engines • Maintain databases of the Web pages they’ve indexed • Spiders / Crawlers / Web-bots / Knowledge-bots or Knowbots • Computer programs that search the WWW via the Internet

  25. Portals • Gateways that provide a conveniently organized subject guide to Internet content • MSN, AOL, Yahoo! • iGoogle

  26. Ways to Search • Search Operators: • + Inclusion operator • Retrieve pages that contain the specified word • - Exclusion operator • Exclude the term • Wildcards: symbols (* and ?) that take place of characters • “” Quotation marks • Web pages that contain the extact phrase

  27. Ways to Search • Boolean Operators • AND • Contain all the terms, regardless of the order • OR • Contain either or both of the terms listed • NOT • Excludes the term

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