Your SlideShare is downloading. ×
  • Like
Session no 2 For BZU
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Now you can save presentations on your phone or tablet

Available for both IPhone and Android

Text the download link to your phone

Standard text messaging rates apply

Session no 2 For BZU

  • 1,215 views
Published

Introduction of Web and Networking

Introduction of Web and Networking

Published in Education , Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
  • sir website apni jo bnani thi uss mn kia kia huna chahiye????
    Are you sure you want to
    Your message goes here
  • main web sent krta hu ap ko dakhna theak hai
    Are you sure you want to
    Your message goes here
  • ho gai show thanks
    Are you sure you want to
    Your message goes here
  • @775522ch Dear student at least you should send me the code. so i can help you.
    Are you sure you want to
    Your message goes here
  • i m Qasin Irshad Chatha section (c)
    sir we py picture a jaati laken show nai ho rahi btayie ga
    Are you sure you want to
    Your message goes here
No Downloads

Views

Total Views
1,215
On SlideShare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
47
Comments
12
Likes
9

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Session No 2 The Internet and World Wide Web 11/27/13 Developed By: Saif Ullah Dar 1
  • 2. Chapter 2 Objectives Discuss how the Internet works Define Webcasting Understand ways to access the Internet Describe the uses of electronic commerce (e-commerce) Identify a URL Identify the tools required for Web publishing Know how to search for information on the Web Describe the types of Web pages Explain how e-mail, FTP, newsgroups and message boards, mailing lists, chat rooms and instant messaging work Identify the rules of netiquette Next p. 2.2 Recognize how Web pages use graphics, animation,audio, video, and virtual reality 11/27/13 Developed By: Saif Ullah Dar 2
  • 3. The Internet What is a network?  A collection of computers and devices connected together via communications devices and media • Modems • Cables • Telephone lines • Satellites Next p. 2.2 11/27/13 Developed By: Saif Ullah Dar 3
  • 4. The Internet What is the Internet?   Also called the Net A worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals Next p. 2.2 11/27/13 Developed By: Saif Ullah Dar 4
  • 5. The Internet What are some of the services found on the Internet? instant messaging e-mail Web message board chat file transfer Next p. 2.3 Fig. 2-1 11/27/13 Developed By: Saif Ullah Dar 5
  • 6. History of the Internet How did the Internet originate? ARPANET Networking project by Pentagon’s Advanced Research Projects Agency (ARPA) Next p. 2.3 11/27/13 Goal: To allow scientists at different locations to share information and work together on military and scientific projects Goal: To function even if part of the network were disabled or destroyed Ullah Dar Developed By: Saif Became functional in September 1969 6
  • 7. History of the Internet What is a host node?      Next p. 2.4 University of California at Los Angeles Also called a host Any computer that Stanford directly connects to a Research network Institute Often stores and University of transfers data and California at messages Santa Barbara Provides network University of connections for other Utah computers Four original nodes on ARPANET 11/27/13 Developed By: Saif Ullah Dar 7
  • 8. History of the Internet How has this network grown? Today More than 100 million host nodes 1984 More than 1,000 host nodes 1969 Four host nodes Next p. 2.4 11/27/13 Developed By: Saif Ullah Dar 8
  • 9. History of the Internet What is NSFnet? The National Science Foundation’s network  Five supercomputer centers  Connected to ARPANET in 1986  NSFnet ARPANET The Internet Next p. 2.4 11/27/13 Developed By: Saif Ullah Dar 9
  • 10. History of the Internet Who provides the structure for the Internet today? Networks from corporations, commercial firms, and other companies Telephone companies Satellite companies Cable companies Government Next p. 2.4 11/27/13 Developed By: Saif Ullah Dar 10
  • 11. History of the Internet Who controls the Internet? The Internet is a public, cooperative, and independent network  No single entity controls or owns the Internet  Several organizations advise and define standards  World Wide Web Consortium (W3C) • Oversees research and Next p. 2.4 sets standards and guidelines 11/27/13 Internet2 (I2) • Internet-related research and development project • Develops and tests advanced Internet technologies Developed By: Saif Ullah Dar 11
  • 12. Technology Trailblazer Tim Berners-Lee  Created the World Wide Web  Director of the World Wide Web Consortium (W3C) at MIT Click to view Web Link then click Tim Berners-Lee Next p. 2.4 11/27/13 Developed By: Saif Ullah Dar 12
  • 13. How the Internet Works What is an Internet service provider (ISP)?   A business that has a permanent Internet connection Provides temporary connections to individuals and companies for free or for a fee Next p. 2.5 11/27/13 Regional ISP Provides access to the Internet through one or more telephone numbers local to a specific geographic location National ISP Provides local telephone numbers in most major cities and towns nationwide May also provide a toll-free Developed By: Saif Ullah Dar number 13
  • 14. How the Internet Works What is a point of presence (POP)? An access point on the Internet Next p. 2.5 11/27/13 Accessed by dialing a telephone number Select a service provider with at least one local POP telephone number Developed By: Saif Ullah Dar 14
  • 15. How the Internet Works What are other service providers? Online Service Provider (OSP) • Supplies Internet access • Has many membersonly features that offer special content Wireless Service Provider • Company that provides wireless Internet access Click to view Web Link then click Service Providers Next p. 2.5 11/27/13 Developed By: Saif Ullah Dar 15
  • 16. Company on the Cutting Edge America Online    World’s leading online service provider Services include electronic mail, software, computer support services, Internet access Founded in 1985 by Stephen M. Case Click to view Web Link then click AOL Next p. 2.6 11/27/13 Developed By: Saif Ullah Dar 16
  • 17. How the Internet Works What are ways to access the Internet? 1 Regional Internet Service 2 National Provider’s Internet POP Service 3 Online Provider’s Service’s POP Local POP 4 Wireless Online Service Internet (special Service members-only content) Provider 2 1 3 4 local call local call Next p. 2.5 Fig. 2-2 11/27/13 long-distance call Developed By: Saif Ullah Dar local call toll-free call toll-free call local 17 call
  • 18. How the Internet Works How can you connect to the Internet? High speed connection • Employees and students • Computers part of a local area network (LAN) • Connect to service provider through a high-speed connection line leased from local telephone company Dial-up access • Home or small business • Computer, modem, regular telephone line • Dial into an ISP or OSP Newer high-speed technologies • Home and small business • Digital subscriber line (DSL) – provides high-speed Internet Next p. 2.6 connections over regular copper telephone line Developed By: Saif Ullah Dar • Cable11/27/13 modem- provides high-speed Internet connections through cable television network 18
  • 19. How the Internet Works What are three parts of an Internet connection? Server • Computer that • • manages the resources on a network Provides a centralized storage area for resources such as programs and data Also called a host computer Backbone • Inner structure • of the Internet Communications lines that carry the heaviest amount of traffic Client • Computer that can access the contents of the storage area on the server Click to view Web Link then click Internet Backbone Next p. 2.6 11/27/13 Developed By: Saif Ullah Dar 19
  • 20. How the Internet Works 1: You initiate an How might data travel the Internet using a telephone line action to request Regional 2: Aconnection? modem the data from converts 3: 4: 5: 6: 7: 8: the digital signals Internet. Data the computer from (request) travels through into analog signals, Data may pass to a telephone which are lines through one or local ISP. by understood The regional ISP more routers telephone lines. uses lines, leased before reaching its The national ISP from destination. final a telephone routes data across company, tofrom a Data moves send the country to a local dataserver retrieves national ISP to The to a national another national ISP.and then to a ISP the requested data ISP. destinationit back and sends server. through the Internet backbone to your computer. Step 1 ISP Step 5 Step 2 Step 4 National ISP Local ISP Step 6 Internet backbone Step 8 Step 7 Next p. 2.7 Fig. 2-3 Step 3 11/27/13 Developed By: Saif Ullah Dar 20 National ISP
  • 21. How the Internet Works What is an Internet protocol (IP) address?    Number that uniquely identifies each computer or device connected to the Internet Four groups of numbers, each separated by a period Number in each group is between 0 and 255 IP address 199.95.72.10 last part identifies specific computer first part identifies network Next p. 2.8 Fig. 2-4 11/27/13 Developed By: Saif Ullah Dar 21
  • 22. How the Internet Works What is a domain name?    Text version of an IP address Components are separated by periods Each domain name represents one or more IP addresses IP address Domain name 199.95.72.10 www.scsite.com Next p. 2.8 Fig. 2-4 11/27/13 Developed By: Saif Ullah Dar 22
  • 23. How the Internet Works What is a top-level domain (TLD) abbreviation?  Identifies the type of organization associated with the domain  Sometimes called dot com when TLD is com Next p. 2.8 Fig. 2-5 11/27/13 Developed By: Saif Ullah Dar 23
  • 24. How the Internet Works What systems control domain names? Internet Corporation for Assigned Names and Numbers (ICANN) Group that assigns and controls TLDs Domain name system (DNS) System on the Internet that stores the domain names and their corresponding IP addresses Next p. 2.8 11/27/13 DNS server Translates the domain name into its associated IP Developed By: Saif Ullah Dar address 24
  • 25. The World Wide Web What is the World Wide Web (WWW)?       Also known as the Web A worldwide collection of electronic documents Each document on the Web is called a Web page Can contain text, graphics, sound, and video Can contain built-in connections to other documents A Web site is a collection of related Web pages Next p. 2.9 11/27/13 Developed By: Saif Ullah Dar 25
  • 26. The World Wide Web What is a Web browser? Also called a browser  Software program that allows you to access and view Web pages  Two popular browsers for personal computers • Netscape Next • Internet p. 2.9 Fig. 2-6 11/27/13 Explorer  Developed By: Saif Ullah Dar 26
  • 27. The World Wide Web Step 1 How can you establish a connection and start the Web 1 Double-click browser? an Step 2 icon on the desktop, such as 2 Internet Explorer, If you are not connected to to start your the Internet already, browser. 3 Connection to the your computer Internet occurs attempts to and a home page establish a displays. Shown a connection with here is an AOL service provider. home page. Your If necessary, click home page may the Connect vary. button. Internet Explorer icon Next p. 2.10 Fig. 2-7 11/27/13 Step 3 Developed By: Saif Ullah Dar 27
  • 28. The World Wide Web What is a home page?     Next p. 2.10 Starting page for a browser Provides information about the site’s purpose and content Some Web sites also refer to their starting page as a home page May be changed at any time 11/27/13 Developed By: Saif Ullah Dar 28
  • 29. The World Wide Web What is downloading? The process of receiving information, such as a Web page, onto your computer from a server on the Internet Can take from a few seconds to several minutes Next p. 2.11 You can speed up the display of pages by turning off the graphics and displaying only text in most Web browsers 11/27/13 Developed By: Saif Ullah Dar 29
  • 30. The World Wide Web How do Web-enabled handheld computers and devices access the Web?    Use a special type of browser designed for their small screens Microbrowser – software program that accesses and displays Web pages that contain mostly text Also called a minibrowser Next p. 2.11 Fig. 2-8 11/27/13 Microbrowser for a Web-enabled cellular telephone Microbrowser for a Webenabled Developed By: Saif Ullah Dar handheld computer 30
  • 31. The World Wide Web What is a hyperlink? Also called a link  Built-in connection to another related Web page or part of a Web page  Allows you to obtain information Click to view in a nonlinear way animation  Next p. 2.12 11/27/13 Developed By: Saif Ullah Dar 31
  • 32. The World Wide Web How can you identify a link?     Next p. 2.12  Link can be a word, phrase, or image Text links usually are underlined or in a color different from the rest of the document A graphical link may change its appearance when you point to it The shape of the pointer on the screen changes to a small hand with a pointing index finger when you position it on a link or point to the link Click the link to activate it 11/27/13 Developed By: Saif Ullah Dar 32
  • 33. The World Wide Web How do you navigate a variety of links? Some links display a different color Some links are when you point underlined. to them. Clickto Click the link Some links are the link the display to graphical display its associated images. Click associated Web site or the link to Web site or page. display its Web page. associated Web site or Web page. pointer Next p. 2.12 Fig. 2-9 11/27/13 Developed By: Saif Ullah Dar 33
  • 34. The World Wide Web What is surfing the Web? Links can point to an item on the same Web page, a different Web page at the same Web site, or a separate Web page at a different Web site in another city or country  The activity of jumping from one Web page to another is surfing  Next p. 2.12 11/27/13 Developed By: Saif Ullah Dar 34
  • 35. The World Wide Web What is a Uniform Resource Locator (URL)?     Unique address for a Web page Browser retrieves a Web page by using the URL Also called a Web address Type the URL into the address text box on the browser and press the Enter key to display a Web page http://www.nationalgeographic.com/travel/index.html Next p. 2.13 Fig. 2-10 11/27/13 address address text box Developed By: Saif Ullahbox text Dar 35
  • 36. The World Wide Web What are the parts of a URL? protocol domain name path http://www.nationalgeographic.com/travel/index.html Click to view Web Link then click URLs Next p. 2.13 Fig. 2-10 11/27/13 Developed By: Saif Ullah Dar 36
  • 37. The World Wide Web What is a Web server? A computer that delivers (serves) Web pages you request  The same Web server can store multiple Web sites  http://www.nationalgeographic.com/travel/index.html Next p. 2.13 Fig. 2-10 11/27/13 Developed By: Saif Ullah Dar 37
  • 38. The World Wide Web What is a search engine?  A software program you can use to find Web sites, Web pages and Internet files Search text A word or phrase entered in the search engine’s text box Also called keywords Click to view video Next p. 2.14 11/27/13 Spider A program that reads pages on Web sites in order to find Web pages that contain the search text Also called a crawler Developed By: Saif Ullah Dar or bot 38
  • 39. The World Wide Web What is a hit?  Any Web page name that lists as the result of a search 363 hits hit Next p. 2.14 Fig. 2-11 11/27/13 Developed By: Saif Ullah Dar 39
  • 40. The World Wide Web What are some widely used search engines? Next p. 2.15 Fig. 2-12 11/27/13 Developed By: Saif Ullah Dar 40
  • 41. The World Wide Web What is a directory?    An organized set of topics Used by a search engine to aid in locating Web sites Each major topic has related subtopics Next p. 2.15 Fig. 2-13 11/27/13 Developed By: Saif Ullah Dar 41
  • 42. The World Wide Web What are the six basic types of Web pages? advocacy Web page news Web page business/marketing Web page informational Web page portal Web page personal Web page Next p. 2.16 11/27/13 Developed By: Saif Ullah Dar 42
  • 43. The World Wide Web What is an advocacy Web page?   Next Contains content that describes a cause, opinion,or idea Purpose is to convince the reader of the validity of the cause, opinion, or idea p. 2.16 Fig. 2-14a 11/27/13 Developed By: Saif Ullah Dar 43
  • 44. The World Wide Web What is a business/marketing Web page?   Contains content that promotes or sells products or services Often allows you to purchase products or services online Next p. 2.16 Fig. 2-14b 11/27/13 Developed By: Saif Ullah Dar 44
  • 45. The World Wide Web What is an informational Web page? Contains factual information  Many U.S. government sites provide information  Next p. 2.16 Fig. 2-14c 11/27/13 Developed By: Saif Ullah Dar 45
  • 46. The World Wide Web What is a news Web page?   Contains newsworthy material Stories and articles relating to current events, life, money, sports, and the weather Next p. 2.16 Fig. 2-14d 11/27/13 Developed By: Saif Ullah Dar 46
  • 47. The World Wide Web What is a portal Web page   Often called a portal Offers a variety of Internet services from a single, convenient location Next p. 2.16 Fig. 2-14e 11/27/13 Developed By: Saif Ullah Dar 47
  • 48. The World Wide Web What services are often found on a portal? search engine local , national, and worldwide news e-mail sports and weather free personal Web pages Next p. 2.17 11/27/13 maps stock quotes instant messaging newsgroups or message boards reference tools shopping malls and auctions chat rooms calendars Developed By: Saif Ullah Dar 48
  • 49. The World Wide Web What is a Web community? A Web site that joins a specific group of people with similar interests or relationships  Usually offer special services to facilitate communication among members  newsgroup or message board Next p. 2.17 11/27/13 e-mail online photo albums Developed By: Saif Ullah Dar chat room 49
  • 50. The World Wide Web What is a wireless portal?    A portal specifically designed for Web-enabled handheld computers and devices Attempts to provide all information a wireless user might require Services include search engines, news, stock quotes, weather, maps, e-mail, calendar, instant messaging, and shopping Next p. 2.17 11/27/13 Developed By: Saif Ullah Dar 50
  • 51. Company on the Cutting Edge Yahoo!  Co-founded by Jerry Yang and David Filo in 1994 Started as a series of lists to organize favorite Web sites  Today more than 166 million visitors Click to view Web Link then click Yahoo! access 189 million Next pages daily p. 2.17 11/27/13 Developed By: Saif Ullah Dar  51
  • 52. The World Wide Web What is a personal Web page?   A Web page maintained by a private individual who normally is not associated with any organization Reasons: job hunting and sharing life experience with the world Next p. 2.17 Fig. 2-14f 11/27/13 Developed By: Saif Ullah Dar 52
  • 53. The World Wide Web What is multimedia? Any application that integrates text with other media elements  Often used for Web pages to add appeal  Multimedia Web pages often require more time to download because they contain large graphics and video or audio clips  audio graphics Next p. 2.18 11/27/13 animation virtual reality Developed By: Saif Ullah Dar video 53
  • 54. The World Wide Web What is a graphic?    Also called a graphical image A digital representation of information such as a drawing, chart, or photograph First media used to enhance textbased Internet Next p. 2.18 Fig. 2-15 11/27/13 Developed By: Saif Ullah Dar 54
  • 55. The World Wide Web What are the formats for graphics files on the Web? Next p. 2.18 Fig. 2-16 11/27/13 Developed By: Saif Ullah Dar 55
  • 56. The World Wide Web Which two formats are most popular for the Web? JPEG (Joint Photographic Experts Group) GIF (Graphics Interchange Format) Also uses compression techniques to reduce file size  Works best for images with only a few distinct colors, such as line drawings, single-color borders, and simple cartoons  Graphical image that uses compression techniques to reduce the file size  Smaller sizes result in faster downloading of Web page  The more compressed the file, the smaller the file, but the lower the quality 11/27/13  Next p. 2.19 Developed By: Saif Ullah Dar 56
  • 57. The World Wide Web What is a thumbnail?    A small version of a larger graphical image Used because graphics files can be time consuming to display Usually click thumbnail to display the fullsized image Next p. 2.19 Fig. 2-17 11/27/13 Developed By: Saif Ullah Dar 57
  • 58. The World Wide Web What is animation?    Next p. 2.19 The appearance of motion created by displaying a series of still images in rapid sequence Adds visual interest or draws attention to important information or links Animated GIF uses computer animation and graphics software to combine several images into a single GIF file 11/27/13 Developed By: Saif Ullah Dar 58
  • 59. The World Wide Web What is a marquee? Text that animates by scrolling across the screen  Pronounced mar-KEE  tion animation * with animation** ** *interest with with animation * interest animation*** *interest rest withwithadd*** ** interest**animation* with with*animationadd *add add interest**animation* *add*interest animation * * ****add*interest*add*interest*with*with*anim* add add ** inte * Next p. 2.19 11/27/13 Developed By: Saif Ullah Dar 59
  • 60. The World Wide Web What is audio? Music, speech, or any other sound  Individual sound files that you download to your computer  music speech other sound Next p. 2.20 11/27/13 Click icon to hear audio clip. Press the Esc key to cancel. Developed By: Saif Ullah Dar 60
  • 61. The World Wide Web What is MP3?    Next p. 2.20 A popular technology that compresses audio Reduces an audio file to about one-tenth of its original size while preserving the original quality of the sound MP3 file are easily copied  Controversy with respect to copyright from the Web infringement 11/27/13 Developed By: Saif Ullah Dar 61
  • 62. The World Wide Web How can you play MP3 files? Most current operating systems contain a program called a player • plays audio in MP3 files on your computer  Portable audio devices called MP3 players Click to view • play MP3 files Web Link stored on CD or then click MP3 Next miniature storage p. 2.20 Fig. 2-18 media11/27/13 plays music stored on CD  plays music stored on Developed By: Saif Ullah Dar clik! disk 62
  • 63. The World Wide Web What is streaming audio? Also called streaming sound  Enables you to listen to the sound as it downloads  Many radio and television stations use streaming audio to broadcast  Two accepted standards • Windows Media Player Click to view • RealAudio – a Web Link then click component of Streaming Media RealPlayer Next  p. 2.21 Fig. 2-19 11/27/13 Developed By: Saif Ullah Dar 63
  • 64. The World Wide Web What is video? video Consists of fullmotion images that are played back at various speeds  Most video also has accompanying audio  Next p. 2.22 Fig. 2-20 11/27/13 Developed By: Saif Ullah Dar 64
  • 65. The World Wide Web What video formats are used on the Web? MPEG standard (Moving Pictures Experts Group)  Individual video files that you must download completely before you can play them on the computer component of RealPlayer • Windows Media Player Next p. 2.22 Streaming video  Allows you to view longer or live video images as they download to your computer  Two widely used standards • RealVideo – a 11/27/13 Developed By: Saif Ullah Dar 65
  • 66. The World Wide Web What is a Web cam? Also called a cam  A video camera whose output displays on a Web page  Shows images that change regularly  Next p. 2.22 Web cam 11/27/13 Developed By: Saif Ullah Dar 66
  • 67. The World Wide Web What is virtual reality (VR)?    The use of computers to simulate a real or imaged environment that appears as a three-dimensional (3D) space VR world – a 3-D site that contains infinite space and depth Used for games as well as many practical applications Next p. 2.22 Fig. 2-21 11/27/13 Developed By: Saif Ullah Dar 67
  • 68. The World Wide Web What is pull and push technology? Pull  Obtaining information by requesting it from a site  Relies on a client to request a Web page from a server Push  Server automatically downloads content to your computer at regular intervals ticker tape pushed to desktop from Microsoft Investor Web site Next p. 2.23 Fig. 2-22 11/27/13 Developed By: Saif Ullah Dar 68
  • 69. The World Wide Web What is Webcasting?    Another name for push technology Delivers information at regular intervals without you having to request it Information can be viewed whether you are online or offline ticker tape pushed to desktop from Microsoft Investor Web site Next p. 2.23 11/27/13 Developed By: Saif Ullah Dar 69
  • 70. Electronic Commerce What is electronic commerce?  Also known as e-commerce  A financial business transaction that occurs over an electronic network such as the Internet Next p. 2.24 Fig. 2-23 11/27/13 Developed By: Saif Ullah Dar 70
  • 71. Electronic Commerce What are the three types of e-commerce? Business to consumer (B-to-C or b2C) Sale of goods to the general public Consumer to consumer (C-to-C or C2C) One consumer sells directly to another Business to business (B-to-B or B2B) Next p. 2.25 Businesses providing goods and services to 11/27/13 Developed By: Saif Ullah other businessesDar 71
  • 72. Electronic Commerce What are some features of e-commerce?  Electronic storefront • The place where a customer visits an online business  Shopping cart • Allows the customer to collect purchases Online auction • Site where you can bid on an Click to view  Web Link then click E-Commerce item being sold by someone else Next p. 2.25 11/27/13 Developed By: Saif Ullah Dar 72
  • 73. Technology Trailblazer Masayoshi Son Helped to bring Japan to the forefront of the digital age  Founded Softbank Corporation in 1981   By 1995, Softbank controlled one-half of the personal computer software in Japan  Click to view Web Link then click Masayoshi Son Next p. 2.25 A leading member of Japan’s Prime Minister’s IT Strategy Council By: Saif Ullah Dar 11/27/13 Developed 73
  • 74. Web Publishing Step 1 Step 2 What is Web Publishing?  The development and maintenance of Web pages 1 Plan: Think about issues that could affect the design of the 2 Analyze and Design: Sketch a Web site. design of the Web page on 3 paper. Create the Web site in Create: a software package such as 4 Deploy: Copy (upload) the word processing. Web site from your hard disk 5 Maintain: server. revise your to a Web Visit and Web site regularly to be sure it is working and current. Step 4 Step 3 Step 5 Next p. 2.26 Fig. 2-24 11/27/13 Developed By: Saif Ullah Dar 74
  • 75. Web Publishing What is needed for creating a Web page?  Also called Web page authoring Hardware • Digital camera • Scanner • Sound card • Microphone • PC camera Software to prepare HTML • HTML (hypertext markup language) • A set of special codes that format a file for use as a Web page • Created with either: • Word processing package Next p. 2.26 11/27/13 • Web page authoring Developed By: Saif Ullah Dar software 75
  • 76. Web Publishing What is a plug-in? An additional program that extends the capability of a browser  Many plug-ins can be downloaded at no cost Click to view Web Link from the Web then click  Plug-ins Next p. 2.28 Fig. 2-25 11/27/13 Developed By: Saif Ullah Dar 76
  • 77. Web Publishing How do you deploy a Web site? Locate a Web server to store your site • Provided by many Click to view Web Link then click Web Publishing ISPs and OSPs at no additional cost • Provided by a Web hosting service for a monthly fee Upload, or copy, the site to the Web server Next p. 2.29 11/27/13 Developed By: Saif Ullah Dar 77
  • 78. Web Publishing What else might be needed to create a Web site? Apply to an official registrar for a specific domain name Click to view Web Link then click Submission Services Next p. 2.29 11/27/13 Register site with search engines using a submission service • A Web-based business that helps register your site Webmaster Individual responsible for maintaining a Web site and developing Developed By: Saif Ullah Dar 78 Web pages
  • 79. Other Internet Services What is e-mail?    Electronic mail The transmission of messages and files via a computer network Use an e-mail program to work with messages create Click to view Web Link then click E-mail Next p. 2.31 send forward store print receive 11/27/13 delete Developed By: Saif Ullah Dar 79
  • 80. Other Internet Services Step 1 How do you send an e-mail message? Step 2 1 Start an e-mail program and 2 point thethe New Mail Click to New Mail Message button to display 3 Message button Enter the recipient’s e-mail 4 Click the Insert File button Step 4 the Message subject, and address, the window to attach a JPG file 5 the message pictureMessage When Sallya in the to the containing receives the ewindow mail message, she openson message. Locate the file the JPG file to view click its your hard disk and the picture. icon for the file name. An displays. Click the Send button to send the message. Next p. 2.30 Fig. 2-26 11/27/13 Step 3 Developed5 Saif Ullah Dar Step By: 80
  • 81. Other Internet Services What is an Internet e-mail address?  A combination of a user name and a domain name that identifies a user so he or she can receive Internet e-mail user name or user-ID A unique combination of characters that identifies you at domain name Identifies the mail server Next p. 2.31 Fig. 2-27 11/27/13 Developed By: Saif Ullah Dar 81
  • 82. Other Internet Services How can you get e-mail?   Most ISPs and OSPs provide an Internet e-mail program and a mailbox on a mail server as a standard part of their Internet access services Some Web sites provide e-mail services free of charge address book mail server Allows you to store a list of names and e-mail addresses The server that contains the mailboxes mailbox Next p. 2.33 11/27/13 Storage location usually residing on the computer that connects you to the Developed By: Saif Ullah Dar Internet 82
  • 83. Other Internet Services What is a POP server?     Post office protocol server When a message arrives at the recipient’s mail server, the message transfers to a POP or POP3 server POP server holds an e-mail message until the recipient retrieves it with his or her e-mail software POP3 is the newest version Next p. 2.32 11/27/13 Developed By: Saif Ullah Dar 83
  • 84. Other Internet Services How does an e-mail message travel? 1 Using e-mail software, you create and send a 2 Your software contacts message. 3 software on your service Software on the mail provider’s mail server. 4 server determines the The mail server transfers 5 When the recipient uses best route forto a POP3 the message the data e-mail software to check and sends the message, server. for e-mail messages, the which travels along message transfers the Internet routers to from the POP3 serverserver. recipient’s mail to the recipient’s computer. Next p. 2.32 Fig. 2-28 11/27/13 Step 1 Step 2 Step 5 mail server Step 4 Internet routers mail Step 3Developed By: Saif Ullah Dar server POP server 84
  • 85. Other Internet Services What is FTP?  File Transfer Protocol  An Internet standard that allows you to upload and download files with other computers on the Internet file download window Next p. 2.33 Fig. 2-29 11/27/13 Developed By: Saif Ullah Dar 85
  • 86. Other Internet Services What are some FTP terms? FTP server A computer that allows users to upload and download files using FTP FTP site A collection of files that reside on an FTP server Next p. 2.33 11/27/13 Developed By: Saif Ullah Dar anonymous FTP Anyone can transfer some, if not all, available files 86
  • 87. Other Internet Services What is a newsgroup? An online area in which users conduct written discussions about a particular subject  A user sends a message to the newsgroup  Other users in the newsgroup read and reply to the message  Usenet The entire collection of Internet newsgroups Next p. 2.33 11/27/13 news server A computer that stores and distributes newsgroup messages Developed By: Saif Ullah Dar 87
  • 88. Other Internet Services What is a newsreader?  A program that enables you to access a newsgroup article A previously entered message post Add an article to a news group thread Also called threaded discussion Next p. 2.33 11/27/13 The original article and all subsequent related replies Developed By: Saif Ullah Dar 88
  • 89. Other Internet Services What is a message board? A type of discussion group that does not require a newsreader  Also called a discussion board  Click to view Web Link then click Newsgroups and Message Boards Next p. 2.34 Fig. 2-30 11/27/13 Developed By: Saif Ullah Dar 89
  • 90. Other Internet Services What is a mailing list? A group of e-mail names and addresses given to a single name  When a message is sent to a mailing list, every person on the list receives a copy of the message  Subscribe or unsubscribe to mailing list to add or remove your name from the mailing list Next p. 2.34 Fig. 2-31 11/27/13 90  Some are known as Developed By: Saif Ullah Dar LISTSERVs 
  • 91. Other Internet Services What is a chat?    A real-time typed conversation that takes place on a computer Real-time means that you and the people with whom you are conversing are online at the same time A chat room is a location on an Internet server that permits users to chat Click to view Web Link then click Chat Rooms Next p. 2.35 Fig. 2-32  A chat client is a program on your computer 11/27/13 that allows you to chat Developed By: Saif Ullah Dar 91
  • 92. Technology Trailblazer Lavonne Luquis     Journalist Started LatinoLink, the first general interest Web magazine for Latinos Now known as Latino.com More that 280,000 visitors each month Click to view Web Link then click Lavonne Luquis Next p. 2.35 11/27/13 Developed By: Saif Ullah Dar 92
  • 93. Other Internet Services What is instant messaging (IM)?  A real-time Internet communications service • Notifies you when one or more people are online • Allows you to exchange messages or files or join a private chat with them Click to view Web Link then click Instant Messaging Next p. 2.36 Fig. 2-33 Karen’s message immediately displays on Katy’s computer screen because she is online 11/27/13 Katy’s response to Karen message sent from Karen to Katy Developed By: Saif Ullah Dar 93
  • 94. Other Internet Services What is netiquette? Internet etiquette  Code of acceptable behaviors users should follow while on the Internet  Click to view video Next p. 2.37 Fig. 2-34 11/27/13 Netiquette Golden Rule: Treat others as you would like them to treat you. •2.Read the newsgroups, and chat 1.In e-mail, FAQ or posting Avoid sending spam, or an Use abbreviationsexpress emoticons (frequently to for phrases unsolicited message sent or rooms: flames,questions) such as emotionwhich are abusive to many asked recipients at once. Considered insulting messages •3.Use yourby thename for your Keep Smile BTW : ) messages way user brief Internet junk mail. • Do not participate in flame wars, personal use only • Use proper spelling and grammar :( FYI Frown your information for which are exchanges of flames 4.Do not assume material is • Be l Indifference it’s worth FWIW for what : polite accurate or up to date • Avoid offensivehumble opinion IMHO in my language : Undecided 5.Never read someone’s private • Do not use all capital letters which is e-mail ta ta for now TTFN :o Surprised the equivalent of SHOUTING! TYVM thank you very much • Clearly identify a spoiler: a message that reveals a solution to a game or Developed By: movie 94 ending to aSaif Ullah Dar or program
  • 95. Summary of the Internet and World Wide Web The Internet  History of the Internet  How the Internet works  The World Wide Web  Electronic commerce  Web publishing  Other Internet services  Netiquette  Next 11/27/13 Developed By: Saif Ullah Dar 95
  • 96. Chapter 2 Complete 11/27/13 Developed By: Saif Ullah Dar 96