In this chapter, the learning objectives are: Wi-Fi technologies a review, benefits of Internet II technologies, development of the web, some initial products of the World Wide Web, markup languages, web servers and web clients, web browsers, the internet and web features that promote e commerce,...
CSC 330 E-Commerce Teacher Ahmed Mumtaz Mustehsan GM-IT CIIT Islamabad • • Virtual Campus, CIIT COMSATS Institute of Information Technology • T1-Lecture-5 The Internet and The Web Chapter-2 Part-III T1-Lecture-5 For Lecture Material/Slides Thanks to: Copyright © 2010 Pearson Education, Inc Wi-Fi Technologies a Review (2G) T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-3 Wi-Fi Technologies a Review (2.5 G) T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-4 Wi-Fi Technologies a Review (4G) 4G Long Term Evolution LTE Upto 100-300 Mbps True Broadband on Cell phone At&T WiMax 72 Mbps Alternate to LTE wide area network Clearwise/Sprint T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-5 Benefits of Internet II Technologies Latency solutions: diffserv (differentiated quality of service) Assigns different levels of priority to packets depending on type of data being transmitted e.g video data needs priority Video on Demand (VoD) will be possible for every client Guaranteed service levels and lower error rates possible to purchase the right to move data through the network at a guaranteed speed in return for higher fees Improved capacity and packet switching will inevitably impact quality of data transmissions, reducing error rates and boosting customer satisfaction T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-7 Benefits of Internet II Technologies Declining Costs As the Internet pipeline is upgraded, the availability of broadband service will expand beyond major metropolitan areas, significantly reducing the costs of access More users means lower cost, as products and technology catch on in the mass market Both broadband and wireless service fees are expected to decline as geographic service areas increase, in fact due to competition for the business T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-8 Bandwidth Demand of various web Applications T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-9 Development of the Web 1989–1991: Web invented Tim Berners-Lee at CERN HTML, HTTP, Web server, Web browser 1993: Mosaic Web browser w/GUI Andreessen and others at NCSA Runs on Windows, Macintosh, or Unix 1994: Netscape Navigator, First commercial Web browser Andreessen, Jim Clark 1995: Microsoft Internet Explorer T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 110 E-mail Most used application of the Internet Uses series of protocols for transferring messages with text and attachments (images, sound, video clips, etc.,) from one Internet user to another Most of the marketing campaigns runs on e-mail so email can be an effective marketing tool Attachment: T1-Lecture-5 a file inserted within an e-mail message Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 119 Instant Messaging Displays words typed on a computer almost instantly, and recipients can then respond immediately in the same way Different proprietary systems offered by AOL, MSN, Yahoo, and Google Meebo, Digsby: allow users to communicate across platforms of messengers Businessmen T1-Lecture-5 use IM as a client support Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 120 Search Engines Identify Web pages that match queries based on one or more techniques ◦Keyword indexes, page ranking Also serve as: ◦Shopping tools ◦Advertising vehicles (search engine marketing) ◦Tool within e-commerce sites Outside activity T1-Lecture-5 of e-mail, most commonly used Internet Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 121 How Google Works T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 122 Top Five search Engines T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 123 Intelligent Agents (Bots) Software programs that gather and/or filter information on a specific topic and then provide a list of results ◦Search bot ◦Shopping bot ◦Web monitoring bot ◦News bot ◦Chatter bot T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 124 Intelligent Agents (Bots) T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 125 Online Forums and Chat Online forum: ◦AKA message board, bulletin board, discussion group, board, or forum ◦Web application that enables Internet users to communicate with each other, although not in real time ◦Members visit online forum to check for new posts Online chat: ◦Similar to IM, but for multiple users ◦Typically, users log into chat room T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 126 Streaming Media Enables music, video, and other large files to be sent to users in chunks so that when received and played, file comes through uninterrupted Allows users to begin playing media files before file is fully downloaded T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 127 Cookies a tool used by Web sites to store information about a user When a visitor enters a Web site, the site sends a small text file (the cookie) to the user’s computer so that information from the site can be loaded more quickly on future visits The cookie can contain any information desired by the site designers Can help personalize Web site experience Can pose privacy threat T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc Slide 328 128 Web 2.0 Features and Services Blogs ◦Personal Web page that typically contains a series of chronological entries by its author, and links to related Web pages Really Simple Syndication (RSS) ◦Program that allows users to have digital content automatically sent to their computers over the Internet T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 129 Web 2.0 Features and Services Podcasting an audio presentation such as a radio show, audio from a movie, or simply personal audio presentations stored as an audio file and posted to the Web Wikis Web application that allows a user to easily add and edit content on a Web page New music and video services Videocasts: social sharing of videos Digital video on demand T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 130 Web 2.0 Features and Services IP telephony a general term for the technologies that use VoIP and the Internet’s packet switched network to transmit voice and other forms of audio communication over the Internet Voice over Internet Protocol (VoIP) protocol that allows for transmission of voice and other forms of audio communication over the Internet Internet Television (IPTV) Uses high-bandwidth Internet connections to deliver television programming to the home T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 131 Web 2.0 Features and Services Online software and Web services Many kinds of Web services available; many free, from fullfunction applications, to much smaller chunks of code called “widgets” and “gadgets” that you can drag to your blog, or MySpace pages or Facebook page Example: on Facebook, iLike signed up million users in the first six month Gadgets are closely related to widgets They are small chunks of code that usually supply a single limited function such as a clock, calendar, or diary M-commerce applications ◦Beginning to take off T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 132 Thank You T1-Lecture-5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 133 .. .The Internet and The Web Chapter- 2 Part-III T1 -Lecture- 5 For Lecture Material/Slides Thanks to: Copyright © 2010 Pearson Education, Inc Wi-Fi Technologies a Review (2G) T1 -Lecture- 5 Ahmed... due to competition for the business T1 -Lecture- 5 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 1-8 Bandwidth Demand of various web Applications T1 -Lecture- 5 Ahmed Mumtaz Mustehsan... Education, Inc 1-9 Development of the Web 1989–1991: Web invented Tim Berners-Lee at CERN HTML, HTTP, Web server, Web browser 1993: Mosaic Web browser w/GUI Andreessen and others at NCSA Runs