TOPIC 4

Hello and hi,

I have been wondering is there any other search engine rather than using Google, internet explorer and Mozilla?
Actually there are more. In week 3, we have learnt a topic entitled search engine. World Wide Web (www) is a web tool that allows users to enter keywords and find information on websites contained in its database. For example, if you want to look up for the meaning of a word, you can simply type the word and it will offer multiple answers from varieties webpage.

What is search engine?
Search Engines like Google or Yahoo uses software that collects data from the Web to include in its database. Each search engine has its own database. So this database is functioning to store references to Webpages. However, it only keeps only essential information of a webpage. It will query the information by keyword. Note that, it will take longer time to access to the webpages.

What is web-crawlers?
Web-crawlers or spider is an automated program or bot. it is also known as “Crawls” since it will crawls all over the Web Page collecting information through keywords, titles, synonyms, access frequency and also relevancy. The information is indexed and stored in database.


4 parts of search engines
 

Specialization of search engines?
It is tailored to search for a specific area. It database only stores Webpages relevant to a specific field such as Google Scholar, Education World, Art cyclopedia and Pipl.com.


What is Meta search engine?
A search engine that matches the user’s query to multiple search engines. metaCrawler, SavvySearch an Dogpile. You should give it a try to experience a new searching platform. This Meta search engine is different from the usual since this is where all the confidential file and unexposed things has been hidden.  

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