[計算機軟件及應用]計算機與網(wǎng)絡-閱讀頁
2024-12-23 02:32本頁面
【正文】 regularly using “spiders” for addresses of new documents that bee available on the . ?Eg: google 35 Types of Search Sites Web DirectoryFeatured ?Information anized into categories and subcategories, mostly based on human effort. ?Only a fraction of in web directories, and owners of relevant Web sites responsible for inclusion of their sites. ?Eg:Yahoo! 36 How to search Use a search site Type keywords of your search into the search engine Search…. Use the help information offered by each search engine. 37 A search sample results 38 A search sample results 39 Commerce on the web Inter Service Providers ?Sell access to the inter in terms of log on service, service, web publishing ?Establishing and maintaining web presence done through ISPs can be expensive. ?Price based on number of hits that can be handled Advertising ?A way for search engine panies to make money by displaying “visual clutter” ?Ads displayed based on what is being searched for, and can be linked 40 Web Commerce Commercial Transactions ?Growing percentage of Inter merce that includes ordering goods, buying tickets, making bookings on the web. Makes inventory control more efficient and easy to handle。s Web page, make a copy of the .jpeg or .gif file that is their logo and put that logo on your Web page? Can you put a link on your page to the home page of your favorite sports team? 43 Web Ethics Illegal to put copyrighted information on your webpage without permission. The material may include text, graphics, etc. Other web pages can be linked or cited on your web pages. Restricting information access is then that web page’s responsibility. Simply don’t use information you don’t own. If you do, state the sources. 44 Summary World Wide Web ?Inter Inter services ?WWW Clients, Servers, and URLs Searching the Web ?Search engine Commerce on the Web Some Ethical Consideration
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