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Published byCathleen Watkins Modified over 9 years ago
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TODAY’S Lesson Searching on the Internet
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VOCABULARY Search Engine Web site Spider String/Indexer Server Link Boolean Query
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Search Engines What are they? – A program for the internet that searches the WEB for specific key words. Why Do We Need Them? – To get data and research from the World Wide Web of computers.
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Popular Search Engines GOOGLE www.google.com Yahoo www.yahoo.com Alta Vista www.altavista.com Ask Jeeves www.ask.com AOL www.aol.com
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Search Engine OR Website? A Search Engine is NOT really a website. It searches other websites for keywords and information. It gives you the LINKS or names of the websites it finds. A Website is collection of text, images, videos, and other digital data that is located on a web server. It DOES NOT search other websites.
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Search Engines Components. – Spiders/Bots – Strings – Indexers
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Spiders A Web crawler/Bots – It gives the names of the website and the pages to the search engine.
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Strings/Indexers Strings are the text that you entered for searching. Better known as “KEY WORDS” The INDEXER orders the websites and/or pages after the SPIDER finds the information. 1 2 3
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Boolean Values AND OR NOT ( -) “The Minus Sign” “ “ (Quotation Marks) Boolean Values are words that help you find the exact data you are looking for when using a Search Engine. They are “operators” that determine TRUE or FALSE answers.
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Email Setup AND – Both words must be on the website. Example: Greenbay AND Football OR – Either word can be on the website. Example: Houston OR Oilers Minus Sign (-) – These words should not be on the website.
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Vocabulary Review Search Engine It searches other websites for your info, then it displays the links to them. It searches other websites for your info, then it displays the links to them. Website A collection of “stuff” that sits on a computer on the web! A collection of “stuff” that sits on a computer on the web!
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Vocabulary Review Server A computer on the internet that gives a service and/or has a web page. A computer on the internet that gives a service and/or has a web page. Link A picture or “high-lighted” blue phrase that will allow you to go to another web page or site when you click on it. A picture or “high-lighted” blue phrase that will allow you to go to another web page or site when you click on it.
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Vocabulary Review Boolean The logic that computers use to determine if a question is TRUE or FALSE. The logic that computers use to determine if a question is TRUE or FALSE. QUERY The text and “KEYWORDS” you type for your question or Search String. The text and “KEYWORDS” you type for your question or Search String.
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