WHAT ARE SEARCH ENGINES?
Search engines are huge databases of web page files that have been assembled automatically by machine. There are two types of search engines:
Individual. Individual search engines compile their own searchable databases on the web.
Meta. Metasearchers do not compile databases. Instead, they search the databases of multiple sets of individual engines simultaneously
WHAT ARE THE PROS AND CONS OF SEARCH ENGINES?
Search engines are the best means devised yet for searching the web. Stranded in the middle of this global electronic library of information without either a card catalog or any recognizable structure, how else are you going to find what you're looking for?
On the down side, the sheer number of words indexed by search engines increases the likelihood that they will return hundreds of thousands of irrelevant responses to simple search requests. Remember, they will return lengthy documents in which your keyword appears only once.
HOW DO I USE A SEARCH ENGINE?
You type a word, or words into the search window and hit the "search" button. The search engine will then list web pages that have your chosen words on the page.
Our assignment is to go to a search engine called "Yahoo!", type in the word "powerpuff" and look under "Web Site Matches" for links to sites about the powerpuff girls.
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| Last updated 2009/01/21 07:12:36 PST | Hits 266 |
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