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- 1. Discovering Computers Chapter2 Discovering Computers & Microsoft Office 2010
- 2. Objectives Overview Identify andbriefly describe various broadband Internet connections Describe the types of Internet access providers Explain the purpose of a Web browser and identify the components of a Web address Describe how to use a search engine to search for information on the Web Describe the types of Web sites Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 2See Page 43 for Detailed Objectives
- 3. Objectives Overview Recognize howWeb pages use graphics, animation, audio, video, virtual reality, and plug- ins Identify the steps required for Web publishing Explain how e-mail, mailing lists, instant messaging, chat rooms, VoIP, FTP, and newsgroups and message boards work Identify the rules of netiquette Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 3See Page 43 for Detailed Objectives
- 4. The Internet • TheInternet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 4Page 44 Figure 2-1
- 5. The Internet • TheInternet originated as ARPANET (Advanced Research Project Agency) in September 1969 and had two main goals: Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 5Page 44 Allow scientists at different physical locations to share information and work together Function even if part of the network were disabled or destroyed by a disaster
- 6. The Internet 1969 ARPANET becomes functional 1984 ARPANET has morethan 1,000 individual computers linked as hosts 1986 NSF connects NSFnet to ARPANET and becomes known as the Internet 1995 NSFNet terminates its network on the Internet and resumes status as research network 1996 Internet2 is founded Today More than 550 million hosts connect to the Internet Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 6Page 44
- 7. The Internet • Manyhome and small business users connect to the Internet via high-speed broadband Internet service Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 7Pages 45 - 46 Cable Internet service DSL Fiber to the Premises (FTTP) Fixed wireless Wi-Fi Cellular Radio Network Satellite Internet Service
- 8. The Internet An accessprovider is a business that provides individuals and organizations access to the Internet free or for a fee Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 8Page 46
- 9. The Internet ISP (Internet serviceprovider) Regional ISPs provide Internet access to a specific geographical area National ISPs provide Internet access in cities and towns nationwide Online service provider (OSP) Has many members- only features Popular OSPs include AOL (America Online) and MSN (Microsoft Network) Wireless Internet service provider (WISP) Provides wireless Internet access to computers and mobile devices May require a wireless modem Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 9Page 46
- 10. How Data travelson Internet Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 10Page 47 Figure 2-2
- 11. The Internet Adresses •An IP address is a number that uniquely identifies each computer or device connected to the Internet • A domain name is the text version of an IP address – Top-level domain (TLD) Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 11Page 48 Figure 2-3
- 12. The Internet Some genericTop Level Domain Examples are: • .com (Commercial organizations) • .edu (Education) • .org (Non-Profit organizations) • .biz (business of any size) • .net (network provider/commercial companies) • .gov (Governament) Discovering Computers Fundamentals, 2012 Edition Chapter 2 12Page 48 Figure 2-4
- 13. Domain Name System •It is method that the internet uses to store domain names and their corresponding IP Addresses. • DNS translate a domain name into IP Address so that data can travel to accurate place Discovering Computers Fundamentals, 2012 Edition Chapter 2 13
- 14. The World WideWeb • The World Wide Web, or Web, consists of a worldwide collection of electronic documents (Web pages) • A Web site is a collection of related Web pages and associated items • A Web server is a computer that delivers requested Web pages to your computer • Web 2.0 refers to Web sites that provide a means for users to interact Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 14Page 49
- 15. The World WideWeb • A Web browser, or browser, allows users to access Web pages and Web 2.0 programs Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 15Page 49 Internet Explorer Firefox Opera Safari Google Chrome
- 16. The World WideWeb Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 16Page 50 Figure 2-5
- 17. The World WideWeb • 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 Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 17Pages 50 – 52
- 18. The World WideWeb • A Web page has a unique address called a URL or Web address Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 18Page 51 Figure 2-6
- 19. The World WideWeb • Tabbed browsing allows you to open and view multiple Web pages in a single Web browser window Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 19Page 52 Figure 2-7
- 20. The World WideWeb • Two types of search tools are search engines and subject directories Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 20Page 53 Search engine Finds information related to a specific topic Subject directory Classifies Web pages in an organized set of categories
- 21. The World WideWeb Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 21Page 53 Figure 2-8
- 22. The World WideWeb • A search engine is helpful in locating items such as: Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 22Page 53 Images Videos Audio News Maps People or Businesses Blogs
- 23. The World WideWeb Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 23Page 54 Figure 2-9
- 24. The World WideWeb • There are thirteen types of Web sites Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 24Pages 55 - 57 Figure 2-11 Portal News Informational Business/Marketing Blog Wiki Online Social Network Educational
- 25. The World WideWeb Entertainment Advocacy Web Application Content Aggregator Personal Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 25Pages 57 - 58 Figure 2-11
- 26. The World WideWeb • Information presented on the Web must be evaluated for accuracy • No one oversees the content of Web pages Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 26Page 58 Figure 2-12
- 27. The World WideWeb • Multimedia refers to any application that combines text with: Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 27Page 58
- 28. The World WideWeb • A graphic is a digital representation of non text information • Graphic formats include BMP, GIF, JPEG, PNG, and TIFF • A thumbnail is a small version of a larger graphic Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 28Pages 58 - 59 Figure 2-13
- 29. The World WideWeb • Animation is the appearance of motion created by displaying a series of still images in sequence Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 29Page 59
- 30. The World WideWeb • 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 Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 30Pages 60 - 61
- 31. The World WideWeb Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 31Page 60 Figure 2-14
- 32. The World WideWeb • A plug-in is a program that extends the capability of a Web browser Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 32Page 61 Figure 2-15
- 33. The World WideWeb • Web publishing is the development and maintenance of Web pages Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 33Page 62 Plan a Web site Analyze and design a Web site Create a Web site Deploy a Web site Maintain a Web site
- 34. E-Commerce • E-commerce isa 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 Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 34Page 62
- 35. E-Commerce Discovering Computers &Microsoft Office 2010: Discovering Computers Chapter 2 35Pages 62 - 63 E-commerce Business- to- consumer (B2C) Consumer- to- consumer (C2C) Business- to- business (B2B)
- 36. E-Commerce Discovering Computers &Microsoft Office 2010: Discovering Computers Chapter 2 36Pages 62 - 63 Figure 2-16
- 37. Other Internet Services •E-mail is the transmission of messages and files via a computer network • An e-mail program allows you to create, send, receive, forward, store, print, and delete e-mail messages Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 37Pages 63 – 64 Figure 2-17
- 38. Other Internet Services DiscoveringComputers & Microsoft Office 2010: Discovering Computers Chapter 2 38Page 65 Figure 2-18
- 39. Other Internet Services •A mailing list is a group of e-mail names and addresses given a single name – Subscribing adds your e-mail name and address – Unsubscribing removes your name Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 39Page 66
- 40. Other Internet Services •Instant messaging (IM) is a real-time Internet communications service Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 40Page 66 Figure 2-19
- 41. Other Internet Services •A chat is a real-time typed conversation that takes place on a computer • A chat room is a location on an Internet server that permits users to chat with each other Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 41Page 67 Figure 2-20
- 42. 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 Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 42Page 68 Figure 2-21
- 43. 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 board is a Web-based type of discussion group Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 43Pages 68 - 69 Figure 2-22
- 44. Netiquette • Netiquette isthe code of acceptable Internet behavior Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 44Page 69 Figure 2-23
- 45. Summary History and structureof the Internet World Wide Web Browsing, navigating, searching, Web publishing, and e-commerce Other Internet services: e- mail, instant messaging, chat rooms, VoIP, FTP, and newsgroups and message boards Rules of netiquette Discovering Computers & Microsoft Office 2010: Discovering Computers Chapter 2 45Page 70
- 46. Discovering Computers Chapter2 Discovering Computers & Microsoft Office 2010 Complete