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2 Paradigm Publishing, Inc. Computer Concepts Topics 3 2.1 Networks, the Internet, and the World Wide Web 2.2 Connecting to the Internet 2.3 Popular Web Browsers 2.4 Understanding Internet and Web Addresses and Navigating Web Pages 2.5 Searching the Web 2.6 Evaluating Web Content 2.7 Popular Web Plug-ins and Players for Multimedia Content 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options Chapter Summary Paradigm Publishing, Inc. Computer Concepts Topics 4 2.1 Networks, the Internet, and the World Wide Web Network: two or more devices that are linked together to share resources and communicate with each other Internet (Net): a global network that links together other networks Internet Service Provider (ISP): a company that provides access to the Internet’s infrastructure for a fee Paradigm Publishing, Inc. Computer Concepts Topics 5 2.1 Networks, the Internet, and the World Wide Web…continued World Wide Web (Web or WWW): the global collection of web pages circulated on the Internet web page: a document that contains text and multimedia content web browser: a software program used to view web pages website: a collection of related web pages for one organization or individual web server: where all of the web pages and resources that make a website work are stored Paradigm Publishing, Inc. Computer Concepts Topics 6 2.1 Networks, the Internet, and the World Wide Web…continued Web 2.0: websites that encourage and facilitate collaboration and sharing and allow users to add or edit content Web 3.0 or the Semantic Web: meaningful connections between data and Web pages will exist, allowing you to find more complex information more easily and quickly Paradigm Publishing, Inc. Computer Concepts Topics 7 2.2 Connecting to the Internet Components needed for Internet access: network interface card (NIC), often referred to in computer ads as an Ethernet port: hardware where you plug one end of an Ethernet cable into the notebook and the other end into a device that connects to the Internet wireless interface card: allows you to connect to a network using wireless technology Bluetooth: connectivity which offers the ability to connect to another Bluetooth-enabled device Paradigm Publishing, Inc. Computer Concepts Topics 8 2.2 Connecting to the Internet…continued You will also need: an account with an Internet Service Provider (ISP) networking equipment (usually provided by your ISP) such as a cable modem, DSL modem, wireless modem, or satellite modem a router may be needed if you will be connecting multiple devices (newer modems integrate a wireless router within the same equipment) a web browser such as Internet Explorer, Firefox, Chrome, or Safari Paradigm Publishing, Inc. Computer Concepts Topics 9 2.2 Connecting to the Internet…continued ISPs are companies that provide the equipment and servers that allow your PC or mobile device to connect to the Internet backbone fees for Internet access vary and are usually based on the connection speed deciding on the connection speed is generally based on your anticipated usage you may also receive multiple email accounts and security tools to keep your PC or mobile device virus- and spam-free Paradigm Publishing, Inc. Computer Concepts Topics 10 2.2 Connecting to the Internet…continued Broadband: any always-on connection capable of carrying a large amount of data at a fast speed Megabits per second (Mbps): how speed for broadband connectivity is expressed; data transfers at the rate of 1 million bits per second Paradigm Publishing, Inc. Computer Concepts Topics 11 2.2 Connecting to the Internet…continued Paradigm Publishing, Inc. Computer Concepts Topics 12 2.2 Connecting to the Internet…continued Cable Internet access: provided by the same cable company with which you subscribe for television service Digital Subscriber Line (DSL): provided by your telephone company Paradigm Publishing, Inc. Computer Concepts Topics 13 2.2 Connecting to the Internet…continued Fiber-to-the-Premises (FTTP) also referred to as Fiber-to-the-Home (FTTH) or Fiber-Optic-Service (FiOS): involves the ISP running a fiber-optic cable directly to your home or business Satellite Internet access: an option in rural areas where cable or DSL is not available Paradigm Publishing, Inc. Computer Concepts Topics 14 2.2 Connecting to the Internet…continued Fixed wireless Internet access: involves installing an antenna outside your home to send and receive radio signals Wireless Fidelity (Wi-Fi) network: wireless access points and radio signals are used to transmit data Mobile broadband sticks: portable modems that plug into a USB port on your mobile device and connect via a cellular network Paradigm Publishing, Inc. Computer Concepts Topics 15 2.2 Connecting to the Internet…continued 3G (third generation) or 4G (fourth generation): devices that provide Internet access through cell towers 4G LTE network: fastest network for mobile devices Dial-up: connect your PC to your telephone system via a modem built into your PC Paradigm Publishing, Inc. Computer Concepts Topics 16 CHECK YOUR UNDERSTANDING 1 1. The collection of networks that provides the pathway for data to travel is the ______. a. b. c. d. 2. Web Internet Internet4 Superhighway 4. Internet Superhighway World Wide Web Web server Paradigm Publishing, Inc. High-speed Internet access is referred to by this term. a. b. c. d. This refers to the global collection of web pages circulated on the Internet. a. b. c. d. 3. Which of the following connections is NOT high speed? a. b. c. d. Computer Concepts Broadband Megabits per second (Mbps) Superhighway Baseband Cable DSL FTTP Dial-up Topics 17 2.3 Popular Web Browsers Hypertext Markup Language (HTML): a markup language used to create web pages uses tags to describe page content Paradigm Publishing, Inc. Computer Concepts Topics 18 2.3 Popular Web Browsers…continued Internet Explorer (IE): the web browser included with Microsoft Windows Paradigm Publishing, Inc. Computer Concepts Topics 19 2.3 Popular Web Browsers…continued Chrome: Google’s free web browser that runs on Windowscompatible PCs Paradigm Publishing, Inc. Computer Concepts Topics 20 2.3 Popular Web Browsers…continued Firefox: a free web browser available at mozilla.org by the Mozilla Foundation Paradigm Publishing, Inc. Computer Concepts Topics 21 2.3 Popular Web Browsers…continued Safari: Apple’s browser used on Mac and Apple mobile devices Paradigm Publishing, Inc. Computer Concepts Topics 22 2.3 Popular Web Browsers…continued Mobile web browsers: designed to quickly display web pages optimized for the smaller screens on devices such as tablets and smartphones Paradigm Publishing, Inc. Computer Concepts Topics 23 2.4 Understanding Internet and Web Addresses and Navigating Web Pages Internet Protocol (IP) address: a unique address assigned to a computing device that is connected to the Internet ICANN (Internet Corporation for Assigned Names and Numbers): a nonprofit organization that is in charge of keeping track of the Internet addresses and names all around the world Paradigm Publishing, Inc. Computer Concepts Topics 24 2.4 Understanding Internet and Web Addresses and Navigating Web Pages…continued Paradigm Publishing, Inc. Computer Concepts Topics 25 2.4 Understanding Internet and Web Addresses and Navigating Web Pages…continued Web address: a text-based address, to navigate to a website also called a uniform resource locator (URL) Domain Name System (DNS) server: a server that holds the directory and is owned by a business or ISP Paradigm Publishing, Inc. Computer Concepts Topics 26 2.4 Understanding Internet and Web Addresses and Navigating Web Pages…continued Paradigm Publishing, Inc. Computer Concepts Topics 27 2.4 Understanding Internet and Web Addresses and Navigating Web Pages…continued Most people browse the Web in one of two ways: 1. by typing the web address of a company or organization to go directly to a website 2. by typing a search phrase into a search engine website Home page: the first page of a website that displays when the web address is requested Hyperlinks (links): when clicked or tapped on a touchscreen take you to a related web page Paradigm Publishing, Inc. Computer Concepts Topics 28 CHECK YOUR UNDERSTANDING 2 1. This is the web browser included with Microsoft Windows. a. b. c. d. 2. Internet Explorer Chrome Safari Firefox This browser allows you to type search phrases directly in the Address bar. a. b. c. d. 3. a. b. c. d. 4. Computer Concepts IPv6 IPv4 ICANN IPANN A Web address is called a(n) _________. a. b. c. d. Chrome Internet Explorer Firefox Safari Paradigm Publishing, Inc. This is the nonprofit organization that keeps track of Internet addresses for the world. IP address URL DNS Hyperlink Topics 29 2.5 Searching the Web Search engine: a company that searches web pages and indexes the pages by keywords or by subject Spiders or crawlers: programs used by search engines that read web pages and other information to generate index entries Paradigm Publishing, Inc. Computer Concepts Topics 30 2.5 Searching the Web…continued Paradigm Publishing, Inc. Computer Concepts Topics 31 2.5 Searching the Web…continued Following are some guidelines for fine-tuning a search: • • • • • • Place a search phrase in quotations Type a minus symbol in front of a keyword Consider using a search engine’s category Check out a search engine’s advanced search tools Restrict searches to a specific time frame Look for Help at the search engine’s website Metasearch search engines: send your search phrase to other search engines and then compile the results in one list Paradigm Publishing, Inc. Computer Concepts Topics 32 2.5 Searching the Web…continued Content aggregator: an organization that searches the Web for new content and collects and organizes the content in one place Really Simple Syndication (RSS): a specification used by content aggregators to distribute updates to subscribers Paradigm Publishing, Inc. Computer Concepts Topics 33 2.6 Evaluating Web Content Start at the web address: look at domain names for publishers of content in the print-based world with which you are familiar Paradigm Publishing, Inc. Computer Concepts Topics 34 2.6 Evaluating Web Content…continued Look for an author and the author’s affiliation: check for an author’s name at the page Paradigm Publishing, Inc. Computer Concepts Topics 35 2.6 Evaluating Web Content…continued Check the publication date: in most cases you want to find the most recent information about a topic a clue to the date of publication may appear in the linked web address Paradigm Publishing, Inc. Computer Concepts Topics 36 2.6 Evaluating Web Content…continued Purpose and design of the site: consider the purpose and design of the page you are reading Paradigm Publishing, Inc. Computer Concepts Topics 37 CHECK YOUR UNDERSTANDING 3 1. A search engine uses this type of program to search the Web for keywords to index. a. b. c. d. 2. Hyperlinks HTTP Metaindex Spider b. c. d. 4. category hypertext metasearch cybersearch Paradigm Publishing, Inc. Which of the following is NOT a strategy to help you evaluate a web page’s credibility? a. A search engine that compiles results from other search engines is called a _______ search engine. a. b. c. d. 3. Computer Concepts Look at the domain name for an organization you recognize. Check for an author’s name and affiliation. Evaluate the page design. Look for the same page at a different search engine. If a publication date is not on the web page, a clue may appear in this linked address. a. b. c. d. IP address Web address Mailing address for the organization DNS Topics 38 2.7 Popular Web Plug-ins and Players for Multimedia Content Plug-in (add-on) or player: a software program that allows the browser to display enhanced content that it cannot display on its own Paradigm Publishing, Inc. Computer Concepts Topics 39 2.7 Popular Web Plug-ins and Players for Multimedia Content…continued Paradigm Publishing, Inc. Computer Concepts Topics 40 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options E-commerce: the abbreviation for electronic commerce, which involves buying or selling over the Internet Paradigm Publishing, Inc. Computer Concepts Topics 41 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options…continued Paradigm Publishing, Inc. Computer Concepts Topics 42 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options…continued Email (electronic mail): the sending and receiving of digital messages using the Internet, sometimes with documents or photos attached Email address: used to connect to your email account at the ISP server and is generated in the format [email protected] or [email protected] Email client: a program such as Microsoft’s Outlook or Apple’s Mail to send and receive messages Paradigm Publishing, Inc. Computer Concepts Topics 43 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options…continued Text messages: short text exchanges, referred to as texting, that you send to another mobile device using a service called Short Message Service (SMS) Instant messaging: exchanging text messages in real time between other users of similar devices Paradigm Publishing, Inc. Computer Concepts Topics 44 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options…continued Voice over Internet Protocol (VoIP): the ability to call someone using the Internet and engage in a voice conversation Paradigm Publishing, Inc. Computer Concepts Topics 45 2.8 E-Commerce, Messaging, and Internet Telephone and Conferencing Options…continued Web conferencing: a program that allows a group of individuals to connect online to engage in a meeting Paradigm Publishing, Inc. Computer Concepts Topics 46 CHECK YOUR UNDERSTANDING 4 1. This player allows you to read PDF documents. a. b. c. d. 2. 3. Adobe Reader Adobe Flash Player Shockwave Player Real Player a. b. c. d. This player is a programming language used on web pages. a. b. c. d. 4. QuickTime Real Player Silverlight Java Paradigm Publishing, Inc. E-tailers are primarily involved in this category of e-commerce. This type of software allows a group of individuals to collaborate online in a meeting. a. b. c. d. Computer Concepts B2C B2B B2W C2C VoIP Email Instant messaging Web conferencing Topics 47 Chapter Summary After successfully completing this chapter, you are now able to: Describe the Internet and the World Wide Web Identify the hardware, software, and service you need to connect to the Internet List and explain the various types of Internet connectivity options Recognize four popular web browsers used to view content Distinguish parts of a URL and search, browse, and evaluate online content Recognize plug-ins and players used on web pages to enrich content Explain online services such as e-commerce, email, and VoIP Paradigm Publishing, Inc. Computer Concepts Topics