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The Internet and World Wide Web

Chapter 2 - Week 10

Tan Swee Ting

on 7 October 2012

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Transcript of The Internet and World Wide Web

Chapter 2- week 10 The internet
World Wide Web The Internet The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals The Internet originated as ARPANET in September 1969 and had two main goals: The Internet The Internet Many home and small business users connect to the Internet via high-speed broadband Internet service The Internet The Internet The Internet An IP address is a number that uniquely identifies each computer or device connected to the Internet

A domain name is the text version of an IP address
-Top-level domain (TLD) The Internet The Internet The World Wide Web, or Web, consists of a worldwide collection of electronic documents (Web pages)

A Web site is a collection of related Web pages and associated items

A Web server is a computer that delivers requested Web pages to your computer

Web 2.0 refers to Web sites that provide a means for users to interact The World Wide Web A Web browser, or browser, allows users to access Web pages and Web 2.0 programs The World Wide Web A home page is the first page that a Web site displays

Web pages provide links to other related Web pages

-Surfing the Web

Downloading is the process of receiving information The World Wide Web A Web page has a unique address called a URL or Web address The World Wide Web Tabbed browsing allows you to open and view multiple Web pages in a single Web browser window Two types of search tools are search engines and subject directories The World Wide Web A search engine is helpful in locating items such as: The World Wide Web There are thirteen types of Web sites The World Wide Web Information presented on the Web must be evaluated for accuracy

No one oversees the content of Web pages The World Wide Web The World Wide Web Multimedia refers to any application that combines text with: The World Wide Web A graphic is a digital representation of nontext information

Graphic formats include BMP, GIF, JPEG, PNG, and TIFF

A thumbnail is a small version of a larger graphic The World Wide Web Animation is the appearance of motion created by displaying a series of still images in sequence The World Wide Web Audio includes music, speech, or any other sound
-Compressed to reduce file size

You listen to audio on your computer using a player

Streaming is the process of transferring data in a continuous and even flow

Video consists of full-motion images that are played back at various speeds

Virtual reality (VR) is the use of computers to simulate a real or imagined environment that appears as a three-dimensional space A plug-in is a program that extends the capability of a Web browser The World Wide Web Web publishing is the development and maintenance of Web pages E-commerce is a business transaction that occurs over an electronic network

Anyone with access to a computer or mobile device, an Internet connection, and a means to pay for purchased goods or services can participate in e-commerce E-Commerce E-mail is the transmission of messages and files via a computer network

An e-mail program allows you to create, send, receive, forward, store, print, and delete e-mail messages Other Internet Services A mailing list is a group of e-mail names and addresses given a single name

-Subscribing adds your e-mail name and address
-Unsubscribing removes your name Other Internet Services Instant messaging (IM) is a real-time Internet communications service A chat is a real-time typed conversation that takes place on a computer

A chat room is a location on an Internet server that permits users to chat with each other Other Internet Services VoIP (Voice over IP) enables users to speak to other users over the Internet

-Also called Internet telephony
-FTP (File Transfer Protocol) is permits file uploading and downloading A newsgroup is an online area in which users have written discussions about a particular subject

-Typically requires a newsreader

A message board is a Web-based type of discussion group Other Internet Services Netiquette Netiquette is the code of acceptable Internet behavior
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