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Search Engines|
Types of Search Engines|
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This article looks at the two types of search engines and then compares Google with certain search engines | |
User1@e-magaziner.com|
11/12/2011|
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Search engines
Google is one of the most popular search engines at the moment. This article looks at the two types of search engines and then compares Google with certain search engines. What is a search engine

A search engine is program that searches the Internet for documents containing specified keywords and returns a list of where the key words were found. Different search engines work in different ways and that is why they seem to get different results. Types of search engines

There are two main kinds of search engines: crawler based search engines and human powered directories.

Google and AltaVista are crawler based search engines. MSN, Ananzi and Aardvark are hybrid search engines as they contain features of human powered directories as well as crawler based search engines. Crawler based search engine

In a crawler based search engine a user types in key words looking for information, illustrated in the diagram below. Crawler based search engines
Crawler based search engines

Crawler based search engines
Crawler based search engines

Human powered directory
In a human powered directory a user selects a subject category, as illustrated below, and starts digging to find the sub category and the required information.

Selected search engine and directories
Common search engines are:
www.google.com
www.altavista.com
www.msn.com
www.ananzi.co.za
www.aardvark.co.za
Google
Google has much to offer in the way of a search engine. One is able to look for web links, images, video, news, maps and more. The Advanced Search feature is useful in finding features, as illustrated below. The Google company continually adds features which will draw the public to their site and a visit to the More link on the opening URL of...
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