Introduction-to-Computing-Chapter-02.pptx

Discovering Computers 2010 Living in a Digital World Objectives Overview Identify and briefly describe various broadband Internet Discuss the evolution of connections and state Describe the t...

Discovering Computers 2010 Living in a Digital World Objectives Overview Identify and briefly describe various broadband Internet Discuss the evolution of connections and state Describe the types of the Internet differences between Internet access providers broadband Internet connections and dial-up connections Describe how to use a Describe the purpose of Explain the purpose of a search engine to search an IP address and its Web browser and identify for information on the relationship to a domain the components of a Web Web and differentiate name address between a search engine and a subject directory 2 Objectives Overview Explain how Web Identify and briefly pages use graphics, Describe the types of describe the steps animation, audio, Web sites required for Web video, virtual reality, publishing and plug-ins Explain how e-mail, mailing lists, instant messaging, chat Identify the rules of rooms, VoIP, netiquette newsgroups and message boards, and FTP work 3 The Internet The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals 4 Evolution of the Internet Many home and small business users connect to the Internet via high-speed broadband Internet service Digital Fiber to Cable Subscriber Cellular Satellite the Fixed Internet Line Radio Wi-Fi Internet Premises wireless service Network Service (DSL) (FTTP) 5 Evolution of the Internet An access provider is a business that provides individuals and organizations access to the Internet free or for a fee 6 Evolution of the Internet Wireless ISP (Internet Online service Internet service provider service provider) (OSP) provider Regional ISPs (WISP) provide Internet Provides wireless Provides wireless Has many access to a Internet access members-only specific to computers and features geographical mobile devices area Popular OSPs National ISPs include AOL provide Internet (America Online) May require a access in cities and MSN wireless modem and towns (Microsoft nationwide Network) Click to view Web Link, click Chapter 2, Click Web Link from left navigation, then click Wireless Modems below Chapter 2 Page 78 7 Evolution of 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) A DNS server translates the domain name into its associated IP address 8 Evolution of the Internet 9 The World Wide Web 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 10 The World Wide Web A Web browser, or browser, allows users to access Web pages and Web 2.0 programs Internet Explore Firefox Opera r Google Safari Chrome 11 The World Wide Web A home page is the Some Web pages are first page that a Web designed specifically site displays for microbrowsers Web pages provide links to other related Web pages – Surfing the Web Downloading is the process of receiving information 12 The World Wide Web A Web page has a unique address called a URL or Web address Discovering Computers 2010: Living in a 13 Digital World Chapter 2 The World Wide Web Tabbed browsing allows you to open and view multiple Web pages in a single Web browser window 14 The World Wide Web Two types of search tools are search engines and subject directories Subject Search director engine y Classifies Finds Web pages in information an organized related to a set of specific topic categories 15  Subject Search director engine y Classifies Finds Web pages in information an organized related to a set of specific topic categories 16 The World Wide Web 17 The World Wide Web A search engine is helpful in locating items such as: Images Videos Audio News People or Maps Blogs Business es 18 The World Wide Web 19 The World Wide Web Some Web browsers contain an Instant Search box to eliminate the steps of displaying the search engine’s Web page prior to entering the search text 20 The World Wide Web Information presented on the Web must be evaluated for accuracy No one oversees the content of Web pages 21 The World Wide Web Web publishing is the development and maintenance of Web pages Analyze Maintai Plan a and Create Deploy na Web design a Web a Web Web site a Web site site site site 22 Other Internet Services 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 23 Other Internet Services Instant messaging (IM) is a real- time Internet communications service 24 Other Internet Services 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 25 Other Internet Services VoIP (Voice over IP) enables users to speak to other users over the Internet – Also called Internet telephony 26 Other Internet Services FTP (File Transfer Protocol) is an Internet standard that permits file uploading and downloading with other computers on the Internet Many operating systems include FTP capabilities An FTP server is a computer that allows users to upload and/or download files using FTP 27 Netiquette Netiquette is the code of acceptable Internet behavior 28 LOWER CASE VS. UPPER CASE 29  EMOTICONS Gwapa kaayu ka Gwapa kaayu ka Gwapa kaayu ka 30