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Week 9: The Internet, ISP & WWW Chapter Goals Internet basics,Internet basics, WWW-Working of InternetWWW-Working of Internet ISP and its ServicesISP and its Services Common Internet Uses/ApplicationsCommon Internet Uses/Applications Familiarizing browsersFamiliarizing browsers URLURL Advantages and disadvantages of InternetAdvantages and disadvantages of Internet HTMLHTML The Internet and the Web The Internet is the largest global network, connecting smaller networks worldwideThe Internet is the largest global network, connecting smaller networks worldwide The Internet was launched in 1969The Internet was launched in 1969 National computer network US funded project called ARPANET The World Wide Web or WWW was introduced in 1991 at USAThe World Wide Web or WWW was introduced in 1991 at USA Father of WWW-Tim Burners LeeFather of WWW-Tim Burners Lee Definition- Internet and www The Internet is a massive network of networks, A networking infrastructure. It connects millions of computers together globally, The World Wide Web, or simply Web, is a way of accessing information over the medium of the Internet. It is an information-sharing model 5 The World Wide Web The Web Interconnection of computers and digital documents Web page A document that contains text or references various kinds of data Links A connection between one web page and another 6 The World Wide Web Website A collection of related web pages Web browser A software tool that retrieves and displays web pages Web server A computer set up to respond to requests for web pages Internet Access- ISP Common way to access the Internet is through a Commercial Internet Service Providers (ISP)Common way to access the Internet is through a Commercial Internet Service Providers (ISP) National Service Providers Wireless service providers(ISP in KSA) ISP Router KSA Router USA Router UKISP: Internet Service Provider Working of Internet Internet Users ModemsWeb server The Internet and How We Connect to It Using an ISP Explain what the Internet isExplain what the Internet is The Internet and How We Connect to It Using an ISP ISP Services Common Internet Uses 1.Communication ExchangeDiscussion groups 2.Online Shopping 3.Searching Virtual libraries Virtual libraries 4.Entertainment 5.Education or e-learning Advantages of Internet 1.F aster Communication 2.A bundant Information Resources 3.O nline Education 4.E ntertainment 5.S ocial Networking 6.O nline Services and E-commerce 7.E -mail 8.S hopping 9.D ownloading Software Disadvantages of the Internet 1.Theft of Personal Information(Security Attack) 1.Theft of Personal Information(Security Attack) 2.Spamming 2.Spamming 3.Malware Threats 3.Malware Threats 4.Age-inappropriate Content 4.Age-inappropriate Content 5.Social Isolation, Browsers Programs that provide access to Web resourcesPrograms that provide access to Web resources Allow you to surf the InternetAllow you to surf the Internet Popular Web browsers include:Popular Web browsers include: Mozilla Firefox Apple Safari Microsoft Internet Explorer Google Chrome Opera Address or location of the resource must be specifiedAddress or location of the resource must be specified URL URLs Uniform Resource LocatorsUniform Resource Locators All URLs have at least two parts ProtocolProtocol Domain nameDomain name Top-level domains (TLDs) provide further information about the websiteTop-level domains (TLDs) provide further information about the website This address is for an Internet server that uses The hypertext transfer protocol. This address is for an Internet server that uses The hypertext transfer protocol. This site belongs to a company named Glencoe. This site belongs to a company named Glencoe. This site is on the part of the Internet known as the World Wide Web. This site is on the part of the Internet known as the World Wide Web. To find the specific Web pages that accompany this book, your browser follows the URLs path to a folder named norton, then to a subfolder named online. To find the specific Web pages that accompany this book, your browser follows the URLs path to a folder named norton, then to a subfolder named online. Communication Most popular Internet activityMost popular Internet activity Types of communicationTypes of communication Electronic Mail ( )Instant Messaging Instant MessagingInstant Messaging Social Networking Social NetworkingSocial Networking Transmission of electronic messages over the InternetTransmission of electronic messages over the Internet Basic partsBasic parts Header AddressAddress SubjectSubject AttachmentAttachment Message Signature Line Return Address Example Return More on Browsers Browsers interpret HTML commandsBrowsers interpret HTML commands Hypertext Markup Language Contained in a document Display document as a Web pageDisplay document as a Web page Common Terms used on Internet Browser : Contains the basic software you need in order to find, retrieve, view, and send information over the Internet.Browser : Contains the basic software you need in order to find, retrieve, view, and send information over the Internet. Download : To copy data from a remote computer to a local computer.Download : To copy data from a remote computer to a local computer. Upload : To send data from a local computer to a remote computer.Upload : To send data from a local computer to a remote computer. Common Terms used on Internet(electronic mail) is the exchange of computer-stored messages by telecommunication.(electronic mail) is the exchange of computer-stored messages by telecommunication. Filter : Software that allows targeted sites to be blocked from view. Filter : Software that allows targeted sites to be blocked from view. Home Page : The beginning "page" of any site. Home Page : The beginning "page" of any site. HTML (Hypertext Markup Language) : The coding language used to create documents for use on the World Wide Web. HTML (Hypertext Markup Language) : The coding language used to create documents for use on the World Wide Web. Hypertext - Generally any text that contains "links" to other text. Hypertext - Generally any text that contains "links" to other text. Model Questions Definewww. Explain working of internet.Explain working of internet. What is URL? What are two parts of URLWhat is URL? What are two parts of URL What is? What are the parts of?What is? What are the parts of? List applications of Internet.List applications of Internet. List browsers.List browsers.