Discovering the internet
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The chapter defines the Internet as a worldwide network of computers that allows users to share information. It discusses how the Internet has revolutionized communication, education, commerce, and more. The history of the Internet is covered, from its origins as the ARPANET project in the 1960s to the creation of the World Wide Web in the 1990s. Various methods for individuals and businesses to connect to the Internet are also described, such as dial-up, DSL, cable, wireless, and mobile access.
Discovering the internet
- 1. Chapter 1
- 2. Into the InternetObjectivesDefine the InternetDescribe how the Internet is usedDiscuss the history of the Internet and the World Wide WebDescribe how individuals and businesses connect to the InternetChapter 1: Into the Internet2
- 3. Defining the InternetThe Internet is a worldwide network of computers that allows individual and business users to share information and other resourcesThe Internet is an interconnected network of networks where each host has a number of other computers connected to itUsers who connect to the Internet to access information are onlineChapter 1: Into the Internet3
- 4. Defining the InternetChapter 1: Into the Internet4
- 5. Using the InternetThe Internet has profoundly changed nearly every aspect of life by revolutionizing how:
- 6. People access information for personal and business use
- 7. Individual shoppers or commercial buyers purchase products and services
- 8. Students do their school work
- 9. People communicate with friends, family, colleagues, and others
- 10. Businesses interact with their customers, vendors, and business partnersChapter 1: Into the Internet5
- 11. Using the InternetChapter 1: Into the Internet6
- 12. Using the InternetWho Uses the Internet?StudentsBusinesspeopleProfessionalsHomemakersRetireesHobbyistsConsumersChapter 1: Into the Internet7
- 13. Using the InternetInternet Activities
- 14. Browsing and searching for information on the World Wide Web
- 15. Communicating with others through e-mail, chat, instant messaging, Web-based discussion groups, newsgroups, mailing lists, blogs, and other social media
- 16. Downloading and uploading files
- 17. Logging on to remote computers
- 18. Conducting business activitiesChapter 1: Into the Internet8
- 19. Using the InternetInternet Activities – The World Wide WebWeb pages – created using HTML or Web authoring software and connected by hyperlinksWeb site – collection of related Web pagesCollege, university, corporate, retail, non-profit, personalWeb server – computer on which Web pages are storedWeb browser – software used to view Web pagesUsed to browse or "surf" the WebChapter 1: Into the Internet9
- 20. Using the InternetChapter 1: Into the Internet10
- 21. Using the InternetChapter 1: Into the Internet11
- 22. Using the InternetInternet Activities (cont'd)Search toolsWeb-based resource to help find specific information on the WebChapter 1: Into the Internet12
- 23. Using the InternetInternet Activities (cont'd)E-mail – users send and receive text with or without attached filesInstant messaging (IM) – two or more users take turns exchanging brief messagesInternet Relay Chat (IRC) or chatting – users type text into a chat window; all users can see what other users typeNewsgroups and mailing lists – users subscribe to a newsgroup discussion or mailing list on a certain topic and receive messages about that topicSocial media – users share information, photos, links, and personal commentary using a variety of online toolsChapter 1: Into the Internet13
- 24. Using the InternetInternet Activities (cont'd)Downloading and uploading files – using FTP to send or retrieve electronic files from a serverMusic, video, dataLogging on to a remote computer – using Telnet to log on to a remote computer to use its processing powerChapter 1: Into the Internet14
- 25. Using the InternetChapter 1: Into the Internet15
- 26. Using the InternetInternet Activities (cont'd)Conducting business activitiesE-commerceE-business modelsB2CB2BB2EC2CChapter 1: Into the Internet16
- 27. History of the InternetOrigins in ARPANETDepartment of Defense founded ARPA to promote computer and scientific researchJ.C.R. Licklider headed computer and information researchLeonard Kleinrock developed packet switchingARPANET – prototype network connecting ARPA and university research centersChapter 1: Into the Internet17
- 28. History of the InternetGrowth and Development of ARPANET
- 29. Ray Tomlinson developed e-mail (1971)
- 30. Vinton Cerf and Robert Kahn developed standard or protocol for communications over a network TCP and IP (1972)
- 31. Beyond Research, to the Public
- 32. NSFnet replaced ARPANET (1985)
- 33. Congress authorized commercial activity on the NSFnet (1992)
- 34. NSFnet moved connections to commercial network providers (1995)Chapter 1: Into the Internet18
- 35. History of the InternetChapter 1: Into the Internet19The Beginnings and Rise of the WebGopher at University of MinnesotaDirectory-based systemMade it easier to find documents on Internet-connected servers
- 36. History of the InternetThe Beginnings and Rise of the Web (cont'd)Tim Berners-Lee (1991)Hypertext Markup Language (HTML)Hypertext Transfer Protocol (HTTP)First Web browser and Web serverMarc Andreessen and Eric Bina (1993)Mosaic browserMarc Andreessen and Jim Clark (1994)Netscape Navigator browserChapter 1: Into the Internet20
- 37. History of the InternetChapter 1: Into the Internet21
- 38. History of the InternetThe Beginnings and Rise of the Web (cont'd)New research networksInternet2 (I2)CANARIEChapter 1: Into the Internet22
- 39. Connecting to the InternetInternet Service Providers (ISPs)Provide access to the InternetConsiderations for choosing an ISPThe speed or bandwidth of the connectionThe type of connection and cost of serviceAvailability of customer service and technical supportChapter 1: Into the Internet23
- 40. Connecting to the InternetChapter 1: Into the Internet24
- 41. Connecting to the InternetConnection MethodsDial-up accessComputer uses standard telephone lines and a modem to access the InternetMostly home usersTwo types:Regular dial-upHigh-speed dial-upChapter 1: Into the Internet25
- 42. Connecting to the InternetConnection Methods (cont'd)Digital Subscriber Line (DSL)An “always on” high-speed Internet connection over standard telephone linesBroadband transmission splitting telephone wire into data and voiceRequires firewall protection to prevent intrusion by outsidersHomeBusinessesChapter 1: Into the Internet26
- 43. Connecting to the InternetConnection Methods (cont'd)CableAn “always on” high-speed Internet connection over cable TV linesCable modem and line splitter requiredFirewall protection neededChapter 1: Into the Internet27
- 44. Connecting to the InternetConnection Methods (cont'd)Fixed wireless connectionsMicrowaveLine-of-sight transmissionChapter 1: Into the Internet28
- 45. Connecting to the InternetConnection Methods (cont'd)Fixed wireless connections (cont'd)One way or two way satellite transmissionsChapter 1: Into the Internet29
- 46. Connecting to the InternetConnection Methods (cont'd)
- 47. Mobile Wireless
- 48. Wireless fidelity (Wi-Fi) technologies to connect to networks
- 49. Wireless access point – hardware that connects wireless devices to a network
- 50. Hotspot – specific geographic location in which a wireless access point provides public Internet accessChapter 1: Into the Internet30
- 51. Connecting to the InternetConnection Methods (cont'd)Mobile Broadband (cont'd)GSM/GPRS card installed in a computer to allow it to connect to a wireless networkCell phones, smartphones, or PDAs can connect to the InternetHigh-Speed Business ConnectionsBusinesses typically use high-speed fiber-optic cable such as a T1 line connected to their local area network to provide Internet access to employeesChapter 1: Into the Internet31
- 52. Connecting to the InternetChapter 1: Into the Internet32
- 53. Chapter 1
- 54. Complete