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Objectives Overview

Objectives Overview

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Objectives Overview

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  1. Objectives Overview See Page 55 for Detailed Objectives Discovering Computers Fundamentals, 2010 Edition Chapter 2

  2. Objectives Overview See Page 55 for Detailed Objectives Discovering Computers Fundamentals, 2010 Edition Chapter 2

  3. The Internet • The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals Page 56 Figure 2-1 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  4. The Internet • The Internet originated as ARPANET in September 1969 and had two main goals: Page 56 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  5. The Internet Page 56 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  6. The Internet • Many home and small business users connect to the Internet via high-speed broadband Internet service Pages 57 - 58 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  7. The Internet Click to view Web Link,click Chapter 2, Click Web Link from left navigation, then click Wireless Modemsbelow Chapter 2 Page 58 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  8. The Internet Page 58 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  9. The Internet Page 59 Figure 2-2 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  10. The Internet • An IP addressis a number that uniquely identifies each computer or device connected to the Internet • A domain nameis the text version of an IP address • Top-level domain (TLD) Page 60 Figure 2-3 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  11. The Internet Page 60 Figure 2-4 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  12. The World Wide Web • The World Wide Web, or Web, consists of a worldwide collection of electronic documents (Web pages) • A Web siteis a collection of related Web pages and associated items • A Web serveris a computer that delivers requested Web pages to your computer • Web 2.0refers to Web sites that provide a means for users to interact Page 61 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  13. The World Wide Web • A Web browser, or browser, allows users to access Web pages and Web 2.0 programs Page 61 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  14. The World Wide Web Page 62 Figure 2-5 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  15. The World Wide Web • A home page is the first page that a Web site displays • Web pages provide links to other related Web pages • Surfing the Web • Downloading is the process of receiving information Pages 62 – 64 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  16. The World Wide Web • A Web page has a unique address called a URL or Web address Page 63 Figure 2-6 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  17. The World Wide Web • Tabbed browsingallows you to open and view multiple Web pages in a single Web browser window Click to view Web Link,click Chapter 2, Click Web Link from left navigation, then click Tabbed Browsingbelow Chapter 2 Page 64 Figure 2-7 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  18. The World Wide Web • Two types of search tools are search engines and subject directories Page 65 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  19. The World Wide Web Page 65 Figure 2-8 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  20. The World Wide Web • A search engine is helpful in locating items such as: Page 66 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  21. The World Wide Web Page 66 Figure 2-9 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  22. The World Wide Web • There are thirteen types of Web sites Pages 67 - 69 Figure 2-11 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  23. The World Wide Web Pages 69 - 70 Figure 2-11 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  24. Video: Tell Your Stories via Vlog CLICK TO START Discovering Computers Fundamentals, 2010 Edition Chapter 2

  25. The World Wide Web • Information presented on the Web must be evaluated for accuracy • No one oversees the content of Web pages Page 70 Figure 2-12 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  26. The World Wide Web • Multimedia refers to any application that combines text with: Page 70 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  27. The World Wide Web • A graphic is a digital representation of nontext information • Graphic formats include BMP, GIF, JPEG, PNG, and TIFF • A thumbnail is a small version of a larger graphic Pages 70 - 71 Figure 2-13 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  28. The World Wide Web • Animation is the appearance of motion created by displaying a series of still images in sequence Page 71 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  29. The World Wide Web • Audio includes music, speech, or any other sound • Compressed to reduce file size • You listen to audio on your computer using a player • Streaming is the process of transferring data in a continuous and even flow • Video consists of full-motion images that are played back at various speeds • Virtual reality(VR) is the use of computers to simulate a real or imagined environment that appears as a three-dimensional space Pages 72 - 73 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  30. The World Wide Web Page 72 Figure 2-14 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  31. The World Wide Web • A plug-in is a program that extends the capability of a Web browser Page 73 Figure 2-15 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  32. The World Wide Web • Web publishingis the development and maintenance of Web pages Click to view Web Link,click Chapter 2, Click Web Link from left navigation, then click Web Page Authoring Software below Chapter 2 Page 74 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  33. E-Commerce • E-commerce is a business transaction that occurs over an electronic network • Anyone with access to a computer or mobile device, an Internet connection, and a means to pay for purchased goods or services can participate in e-commerce Page 74 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  34. E-Commerce Pages 74 - 75 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  35. E-Commerce Click to view Web Link,click Chapter 2, Click Web Link from left navigation, then click Google Checkout Software below Chapter 2 Pages 74 - 75 Figure 2-16 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  36. Other Internet Services • E-mailis the transmission of messages and files via a computer network • An e-mail programallows you to create, send, receive, forward, store, print, and delete e-mail messages Pages 75 – 76 Figure 2-17 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  37. Other Internet Services Page 77 Figure 2-18 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  38. Other Internet Services • A mailing listis a group of e-mail names and addresses given a single name • Subscribing adds your e-mail name and address • Unsubscribing removes your name Click to view Web Link,click Chapter 2, Click Web Link from left navigation, then click E-Mail below Chapter 2 Page 78 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  39. Other Internet Services • Instant messaging (IM) is a real-time Internet communications service Page 78 Figure 2-19 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  40. Other Internet Services • A chat is a real-time typed conversation that takes place on a computer • A chat roomis a location on an Internet server that permits users to chat with each other Click to view Web Link,click Chapter 2, Click Web Link from left navigation, then click Chat Rooms below Chapter 2 Page 79 Figure 2-20 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  41. Other Internet Services • VoIP (Voice over IP) enables users to speak to other users over the Internet • Also called Internet telephony • FTP (File Transfer Protocol) is permits file uploading and downloading Page 80 Figure 2-21 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  42. Other Internet Services • A newsgroup is an online area in which users have written discussions about a particular subject • Typically requires a newsreader • A message boardis a Web-based type of discussion group Pages 80 - 81 Figure 2-22 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  43. Netiquette • Netiquette is the code of acceptable Internet behavior Page 81 Figure 2-23 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  44. Summary Page 82 Discovering Computers Fundamentals, 2010 Edition Chapter 2

  45. Chapter 2 Complete