THE INTERNET and WORLD WIDE WEB (www)

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Presentation transcript:

THE INTERNET and WORLD WIDE WEB (www) Lesson 2 THE INTERNET and WORLD WIDE WEB (www)

Explain how to access and connect to the Internet Lesson 2 OBJECTIVES Explain how to access and connect to the Internet Describe the types of e-commerce Explain how to view pages and search for information on the Web Explain how e-mail, FTP, newsgroups and message boards, mailing lists, chat rooms, Instant messaging, and Internet telephony work Describe the types of Web sites Identify the rules of netiquette Identify the steps required for Web publishing Next

What are some services found on the Internet? Next

The Internet Chat Services found on the Internet: Real-time communication between two users via computer. Once a chat has been initiated, either user can enter text by typing on the keyboard and the entered text will appear on the other user's monitor. Most networks and online services offer a chat feature. Next

The Internet Electronic Commerce Services found on the Internet: Often referred to as simply e-commerce, business that is conducted over the Internet using any of the applications that rely on the Internet, such as e-mail, instant messaging, shopping carts, Web services, UDDI, FTP, and EDI, among others. Electronic commerce can be between two businesses transmitting funds, goods, services and/or data or between a business and a customer. Next

The Internet Services found on the Internet: E-mail Short for electronic mail, the transmission of messages over communications networks. The messages can be notes entered from the keyboard or electronic files stored on disk. Most mainframes, minicomputers, and computer networks have an e-mail system. Some electronic-mail systems are confined to a single computer system or network, but others have gateways to other computer systems, enabling users to send electronic mail anywhere in the world. Companies that are fully computerized make extensive use of e-mail because it is fast, flexible, and reliable. Next

The Internet Services found on the Internet: Instant messaging Next

How did the Internet originate? ARPANET Networking project by Pentagon’s Advanced Research Projects Agency (ARPA) Goal: To allow scientists at different locations to share information Goal: To function if part of network were disabled Became functional September 1969 Next

More than 350 million computer linked hosts The Internet How has the Internet grown? Today More than 350 million computer linked hosts 1984 More than 1,000 hosts 1969 Four hosts Next

World Wide Web Consortium (W3C) The Internet Who controls the Internet? World Wide Web Consortium (W3C) Oversees research, sets standards and guidelines Next

How can you connect to the Internet? How the Internet Works How can you connect to the Internet? Slow-speed technology High-speed connection Dial-up access modem in your computer uses a standard telephone line to connect to the Internet Digital subscriber line (DSL), cable telephone Internet services (CATV), cable modem, fixed wireless, and satellite modems Connection must be established each time you log on. Slow but inexpensive Connection is always on— whenever the computer is running Next

How the Internet Works What are ways to access the Internet? Common methods of home access include dial-up, landline broadband (over coaxial cable, fibre optic or copper wires), Wi-Fi, satellite and cell phones. Next

How the Internet Works How might data travel the Internet using a cable modem connection? Next

How the Internet Works What is a domain name? Next

The World Wide Web What is the World Wide Web (WWW)? A worldwide collection of electronic documents Also called the Web Each electronic document is called a Web page Can contain text, graphics, sound, video, and built-in connections A Web site is a collection of related Web pages Next

Microsoft Internet Explorer The World Wide Web What is a Web browser? Web browser is a program that allows you to view Web pages. Among them are the following: Mozilla Microsoft Internet Explorer Netscape Firefox Opera Safari Next

The World Wide Web What is a home page? What is downloading? A home page is also called a web page or a web site. The first Web site went on-line in 1991. On April 30, 1993, CERN announced that the World Wide Web would be free to anyone. What is downloading? Downloading is the process of transferring data from a source computer to another computer, a peripheral device, or a remote location. Next

The World Wide Web What is a URL? Uniform Resource Locators or URLs are the addresses used to locate the files. The information contained in a URL gives you the ability to jump from one web page to another with just a click of your mouse. When you type a URL into your browser or click on a hypertext link, your browser sends a request to a remote computer, called a web server, to download one or more files. Next

What is a hyperlink (link)? The World Wide Web What is a hyperlink (link)? Hypertext: a format of information which allows, in a computer environment, one to move from one part of a document to another or from one document to another through internal connections among these documents (called "hyperlinks"); Next

How can you recognize links? The World Wide Web How can you recognize links? Next

The World Wide Web What is a search engine? Next

What is a subject directory? The World Wide Web What is a subject directory? Next

The World Wide Web What is a hit? Any Web site name that is listed as the result of a search Step 2. Select type of search you want to run Step 1. Go to search engine Step 3. View hits Step 4. Click link to view Web site Next

The World Wide Web What is multimedia? Multimedia is media that uses multiple forms of information content and information processing (e.g. text, audio, graphics, animation, video, interactivity) to inform or entertain the (user) audience. Multimedia also refers to the use of (but not limited to) electronic media to store and experience multimedia content. In fine art it is a synonym for traditional mixed media as well as technological new media (ArtLex, NWD). Rich media is also a synonym for multimedia. Next

The World Wide Web What is animation? Animation is the filming a sequence of drawings or positions of models to create an illusion of movement. It is an optical illusion of motion due to the phenomenon of persistence of vision. Next

The World Wide Web What is audio? Computer audio devices refers to speakers, or multimedia speakers, are external speakers and are usually equipped with a male-end stereo jack plug (usually color-coded green) for computer sound cards; however, there are some that have female RCA connector, and some people link computer sound cards to nearby stereo systems. There are also USB speakers which gain their power from the 5 volts of a USB port. Computer speakers are usually a simplified stereo system without a radio or other media sources built in. Next

The World Wide Web What is streaming audio? In its most basic notion, the only difference between streaming media and media that you have in its entirety before accessing, is that with streaming, you can begin to access the media before you have received it all. In other words, while you are watching, the rest is arriving. Next

The World Wide Web What is video? Video refers to computer display or computer monitor is an output device that is part of a computer's display system. A cable connects the monitor to a video adapter (video card) that is installed in an expansion slot on the computer’s motherboard. This system converts signals into text and pictures and displays them on a TV-like screen (the monitor). Next

What is virtual reality (VR)? The World Wide Web What is virtual reality (VR)? Virtual reality is a three-dimensional computer simulation in which the user actively participates. Next

The World Wide Web What are plug-ins? The idea is that the new component simply plugs in to the existing system. For example, there are number of plug-ins for the Netscape Navigator browser that enable it to display different types of audio or video messages. Navigator plug-ins are based on MIME file types. Plug-ins are hardware or software module that adds a specific feature or service to a larger system. Next

Web Publishing What is Web publishing? Development and maintenance of Web pages Step 2. Analyze and design the Web site Step 1. Plan the Web site Step 3. Create the Web site Step 5. Maintain the Web site Step 4. Deploy the Web site Next

E-Commerce What is E-Commerce? Electronic commerce, often referred to as simply e-commerce, business that is conducted over the Internet using any of the applications that rely on the Internet, such as e-mail, instant messaging, shopping carts, Web services, UDDI, FTP, and EDI, among others. Electronic commerce can be between two businesses transmitting funds, goods, services and/or data or between a business and a customer. Next

Other Internet Services What is an e-mail address? Next

Other Internet Services What is FTP? FTP is an acronym for File Transfer Protocol. An FTP Server is an internet server that is an archive of documents and files that can be transferred to your computer. Next

FTP (File Transfer Protocol) The simplest and most secure way to exchange files over the Internet. FTP Client is the software that is designed to transfer files back-and-forth between two computers over the Internet. It needs to be installed on the computer and can only be used with a live connection to the Internet. (Browsers, WS-Ftp, SSH, Cute-Ftp,...) PC ARF

Other Internet Services What are newsgroups and message boards? Next

Other Internet Services What is a chat? A chat is a real-time communication between two users via computer. Once a chat has been initiated, either user can enter text by typing on the keyboard and the entered text will appear on the other user's monitor. Most networks and online services offer a chat feature. Next

Other Internet Services What is instant messaging (IM)? A real-time Internet communications service that notifies you when one or more people are online and allows you to exchange messages or files Step 2. The server determines if any of your established friends, family, or coworkers, called buddies, are online Step 1. Login to the IM server Step 5. Your buddy replies Step 3. You send instant messages to an online buddy Step 4. Your Instant Message travels through a messaging server and then to the online buddy Next

Other Internet Services What is internet telephony? Next

Golden Rule: Treat others as you would like them to treat you. Netiquette What is netiquette? Netiquette is a compound word for Internet Ettiquete. Golden Rule: Treat others as you would like them to treat you. Next

Summary of the Internet and World Wide Web History and structure of the Internet Newsgroups and Message Boards The World Wide Web Chat Rooms and Instant Messaging E-Mail Internet Telephony FTP Netiquette Lesson 2 Complete