TODAY’S Lesson   Searching on the Internet . VOCABULARY  Search Engine  Web site  Spider  String/Indexer  Server  Link  Boolean  Query.

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Presentation transcript:

TODAY’S Lesson   Searching on the Internet 

VOCABULARY  Search Engine  Web site  Spider  String/Indexer  Server  Link  Boolean  Query

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.

Popular Search Engines GOOGLE Yahoo Alta Vista Ask Jeeves AOL

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.

Search Engines Components. – Spiders/Bots – Strings – Indexers

Spiders A Web crawler/Bots – It gives the names of the website and the pages to the search engine.

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

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.

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.

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!

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.

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.