Search Engine

Search Engine

1. Definition

   • programs that search documents for specified keywords and returns a list of the documents where the keywords were found.
   • A search engine is really a general class of programs, however, the term is often used to specifically describe systems like Google, Bing and Yahoo! Search that enable users to search for documents on the World Wide Web.

2. Types

   • Google
     • 12 Advanced Google search types
       • Explicit Phrase
         • Exclude Words
           • Site-Specific Serch
             • Similar Words and Synonyms
               • Specific Document Types
                 • This OR Rhat
                   • PHone Listing
                     • Area Code Lookup
                       • Numeric Ranges
                         • Stock (Ticker Symbol
                           • Calculator
                             • Word Definition
   • Yahoo serach
   • Altavista
   • Go.com

3. Advantages

   • Enable to quick search to vast among of information from one serach box
     • search on a specific type or piece of information is possible
       • Different types of search engines enable to look for specific types of documents

4. Disadvantages

   • Create information overload
     • Semantic search is not possible
       • Privacy and security is of concern
         • Makes everyone to depent
           • Beginers users become discouraged and frustrated.