2-Internet _ The Web.pdf

THE INTERNET, THE WEB, AND ELECTRONIC COMMERCE  Introduction The Internet o Interconnected mesh of computers and data lines o Connecting millions of people and organizations Foundation of the digital revolution The Web o Provides an easy-to-use interface to...

THE INTERNET, THE WEB, AND ELECTRONIC COMMERCE  Introduction The Internet o Interconnected mesh of computers and data lines o Connecting millions of people and organizations Foundation of the digital revolution The Web o Provides an easy-to-use interface to Internet resources To be effective and efficient o End user awareness of the resources available on the Internet and the web  The Internet and the Web The Internet o Large global network connecting smaller networks all over the globe The Internet launched in 1969 o The United States funded a project to develop a national computer network o ARPANET World Wide Web or WWW was introduced in 1991 The Internet and the web are NOT the same o The Internet is the physical network o The Web is a multimedia interface to the resources available on the Internet  Web Web 1.0 o 1st generation o Linking existing information focus o Search programs were created ▪ Provide links to websites with specific words or phrases Web 2.0 o Dynamic content creation o Facebook is most common in Web 2.0 Web 3.0 o Identifies relationships between data o Personalized content creation for users  Common Internet Uses Communicating o E-mail, photos, videos o Discussions Shopping Searching o Virtual libraries Education or e-learning Online Entertainment  Internet Access Providers Internet Service Provider (ISP) o Common way to access the Internet o Provide a path to access the Internet o Use telephone lines, cable, and/or wireless connections Most common providers in the Philippines o Globe, PLDT, Smart, Dito  Browser Provide access to web resources Allow you to explore the web o Connect to remote computers o Uncomplicated interface to the Internet o File transfer o Display many varieties of multimedia Popular web browsers include: o Mozilla Firefox o Apple Safari o Microsoft Edge o Google Chrome  URLs Uniform Resource Locator o Location or address of resource o https is the most common form web traffic Two parts o Protocol ▪ Rules for exchanging data o Domain name ▪ Where resource is located  Top-Level Domain (TLD) Top-level domain (TLD) or Web Suffix o Identifies the type of organization ▪.com Commercial ▪.edu Educational ▪.gov Government ▪.mil U.S. Military ▪.net Network ▪.org Organization  HTML and Hyperlinks Hypertext Markup Language o Markup language for displaying web pages Browsers interpret HTML commands o Display document as a web page Hyperlinks or links o Connect to other web pages ▪ Text files ▪ Graphic images ▪ Audio and Video Clips  Interactive Web Sites Technologies used to provide highly interactive and animated websites o Cascading Style Sheets (CSS) o JavaScript o PHP Mobile Browsers o Designed to run on portable devices  Web Utilities Specialized utility programs that make using the Internet and web safer and easier o Filters o File Transfer Utilities o Internet Security Suites  Filters Block access to selected sites Set time limits Monitor total time spent on the Internet and at individual websites o Net Nanny o Qustodio Parental Control o Circle with Disney o Norton Online Family o McAfee Family Protection  File Transfer Utilities Upload and download files to and from the Internet o Downloading o Uploading Three popular types of programs o Web-based file transfer services o Bit-Torrent o File transfer protocol (FTP) / Secure file transfer protocol (SFTP)  Internet Security Suites Designed to maintain your security and privacy while on the web Two best known suites o McAfee Internet Security o Symantec Norton Internet Security  Communication Communication is the most popular Internet activity o Social Networking o Blogs and Microblogs o Webcasts, Podcasts, and Wikis o E-mail and Messaging  Social Networking Connecting people and organizations that share a common interest or activity o Common features oProfiles oPages oGroups oFriends oNews feed oShare settings  Blogs & Microblogs Blogs o Personal websites o Date/time-stamped o Arranged with the most recent items shown first Microblogs o Short status updates o Most common is X (formerly Twitter) ▪ Posts (Tweets) are X (Twitter) messages  Webcasts, Podcasts, Wikis Webcast o Streaming technology for live broadcast of audio and video o No files after streaming ends (Twitch) Podcast o Must download files to use, some are accessible online o Can transfer to media player Wiki o Specially designed Web site o Allows visitors to edit the contents o Supports collaborative writing  Messaging Text messaging / texting o Short Message Service (SMS) ▪ Short electronic message Multimedia Messaging Service (MMS) o Send ▪ Images ▪ Videos ▪ Sounds  Instant Messaging Instant messaging (IM) o Extension of email that provides direct, live communication between two or more people o Most programs include video call features, file sharing and remote assistance ▪ Facebook Messenger ▪ Google Hangouts  E-mail E-mail o Transmission of electronic messages over the Internet o Three elements ▪ Header ❑Address ❑Subject ❑Attachments ▪ Message ▪ Signature E-mail  E-mail Systems Client-based Web-based oE-mail client oWebmail client ▪ Must be installed on ▪ No installation computer necessary -- free ❑Apple Mail ❑Google’s Gmail ❑Microsoft ❑Microsoft’s Outlook Hotmail ❑Yahoo!’s Yahoo! mail  E-mail SPAM o Unwelcome-mail Computer Viruses o Destructive programs ▪ Attached to unsolicited email CAN-SPAM Act o Controlling the Assault of Non-Solicited Pornography And Marketing Act of 2003 o Created antispam laws for control ▪ Every marketing related e-mail must provide an opt-out option SPAM Blockers / SPAM Filters o Identify and control spam  Search Tools Search Services o Operate websites o Spiders ▪ Look for new information and update websites Search Engines o Assist in locating specific information Specialized Search Engines o Focus on subject specific websites  Content Evaluation Content Evaluation o Not everything on the Internet is accurate ▪ Authority ❑Who Created the Content ▪ Accuracy ❑Correctness of the Information. ▪ Objectivity ❑Lack of Bias ▪ Currency ❑Up-to-date Information  Electronic Commerce E-commerce o Buying and selling of goods over the Internet o Three basic types ▪ Business-to-consumer (B2C) ▪ Consumer-to consumer (C2C) ▪ Business-to-business (B2B)  Business to Consumer (B2C) Sale of product or service to general public Fastest growing type of e-commerce Three most widely used B2C applications: o Online banking o Financial trading o Shopping ▪ Amazon.com is one of the most widely use B2C sites  Consumer to Consumer (C2C) Consumer-to-consumer e-commerce (C2C) o Individual to individual (Example is Facebook Marketplace or eBay that specializes in reselling products from different individuals) Web auctions o Buyers and sellers seldom meet o Bids are submitted electronically o Person-to-person auction sites  Business to Business (B2B) Sale of a product or service from one business to another Primarily a manufacturer supplier relationship  Security Payment methods must be fast, reliable, and secure o Provide a convenient way to submit buyers' information Two options o Credit card ▪ Fast and convenient o Digital cash ▪ Internet’s equivalent to traditional cash ▪ Converts digital cash to currency through 3rd party  Cloud Computing Shifts computing activities from users’ computers to computers on the Internet Frees end-users from owning, maintaining, and storing software programs and data Three basic components: o Clients (end-users) o The Internet o Service providers  Internet of Things (IoT) Continuing development of the Internet Allows objects embedded with electronic devices to send and receive data o Smartphones o Wearable devices Uses Web 3.0 Applications  Layers of the Web Open / Surface Web o Websites and web pages that are publicly available Deep Web o They often require a login or specific URL to access Dark Web o Intentionally hidden and requires special tools