1. The Web Web Design

2. 3.2 The Web Focus on Reading Main Ideas A URL is an address that identifies a specific Web page. Web browsers have varying capabilities. Search engines help locate sites containing specific information. Users should carefully evaluate all information found online. Key Terms uniform resource locator (URL) domain name domain name extension accessibility option search engine keyword Boolean search pp. 71-77

3. 3.2 The Web Uniform Resource Locators (URLs) URLs HTTP requires that Web page URLs be in a standard format that browsers know how to interpret. Most URLs consist of four main parts uniform resource locator (URL) A unique address that enables a browser to locate specific page files on the Web. (p. 71) pp. 71-77 http://www.mcgraw- hill.com/about/history.html Protocol Address Directory Path Retrieved File

4. 3.2 The Web Uniform Resource Locators domain name domain name extension The address of the Web page includes the domain name. The domain name includes a domain name extension. domain name Part of a URL that identifies the entity (such as a university, individual, or business) that sponsors the Web site. (p. 72) domain name extension Part of the URL that tells users what type of organization uses the address. (p. 72) pp. 71-77 http://www.mcgraw- hill.com/about/history.html Domain name extension

5. 3.2 The Web Using a Web Browser Web browsers are used to request, retrieve, and view Web pages. Different Web browsers interpret and display HTML differently. accessibility options Many browsers include accessibility options for differently abled individuals. For example, most browsers let users increase the size of text on the screen. accessibility option A feature that allows differently abled individuals to access and use Web pages. (p. 73) pp. 71-77

6. 3.2 The Web Locating Information Online search engines Search tools like search engines and Web directories can help you locate what you are looking for on the Internet. A Web directory is a search tool that catalogs Web sites (not pages) by topic or category. search engine An application that locates information about Web pages and then stores this information in searchable databases that you can access from your browser. (p. 75) pp. 71-77

7. 3.2 The Web Locating Information Online Keyword Boolean searches To use a search engine, you make a search query. Keyword and Boolean searches are two types of queries. keyword An important word related to the specific topic you are trying to locate. (p. 76) Boolean search A type of search that combines keywords in specific ways to locate specific pages. (p. 76) pp. 71-77

8. Activity 3A – Preview a Web Page (p. 74) Activity 3B – Perform a Boolean Search (p. 76) 3.2 The Web pp. 71-77

9. 3.2 The Web Summarize What is a URL? A. An address that identifies a specific Web page. B. A type of browser C. A type of protocol D. A type of network that can be accessed by remote users. A. An address that identifies a specific Web page. pp. 71-77 Section Assessment